Electronic device, wireless communication method and computer readable storage medium

ABSTRACT

An electronic device includes a processing circuit configured to: receive information about a number N of candidate transmit beams from a user device, wherein N is an integer greater than 1; select from the N candidate transmit beams a transmit beam for sending downlink information to the user device; and determine, on the basis of the selected transmit beam, a transmission configuration indication (TCI) state, and send the TCI state to the user device. The electronic device, the wireless communication method and the computer readable storage medium enable a network-side device to notify the user device of the information about transmit beams. In this way, the user device can determine, according to the transmit beam of the network-side device, a proper receiving beam so as to improve the gain of the system.

The present application claims priority to Chinese Patent ApplicationNo. 201810026604.1, titled “ELECTRONIC DEVICE, WIRELESS COMMUNICATIONMETHOD AND COMPUTER READABLE STORAGE MEDIUM”, filed on Jan. 11, 2018with the Chinese Patent Office, which is incorporated herein byreference in its entirety.

TECHNICAL FIELD

Embodiments of the present disclosure generally relate to the field ofwireless communication, and in particular to an electronic equipment, awireless communication method and a computer-readable storage medium.More particularly, the present disclosure relates to an electronicequipment as a network side device in a wireless communication system,an electronic equipment as a user equipment in a wireless communicationsystem, a wireless communication method executed by a network sidedevice in a wireless communication system, a wireless communicationmethod executed by a user equipment in a wireless communication systemand a computer-readable storage medium.

BACKGROUND

Beamforming is a signal preprocessing technology based on an antennaarray. Beamforming produces a directional beam by adjusting weightingcoefficients of each element in the antenna array, such that asignificant array gain can be obtained. Therefore, beamformingtechnology has great advantages in terms of expanding coverage range,improving edge throughput and suppressing interference and the like.

In downlink transmission, a network side device selects a transmittedbeam from multiple transmitted beams to transmit downlink information.In a case that a user equipment has multiple received beams, it isrequired to select an appropriate received beam to receive downlinkinformation transmitted by the network side device, such that abeamforming gain can be obtained. In this case, the user equipment needsto know related information about the transmitted beam to determine thatwhich received beam may be used to receive the downlink informationtransmitted by the network side device through the transmitted beam.Therefore, how the network side device notifies the related informationabout the transmitted beam to the user equipment and how the userequipment determines the appropriate received beam are urgent technicalproblems to be solved.

Therefore, the present disclosure aims to provide an electronicequipment, a wireless communication method and a computer-readablestorage medium, so as to solve at least one of the above technicalproblems.

SUMMARY

This section provides a general summary of the present disclosure,instead of a comprehensive disclosure of full scope or all features ofthe present disclosure.

The present disclosure aims to provide an electronic equipment, awireless communication method and a computer-readable storage medium,such that user equipment may determine an appropriate received beambased on transmitted beam of the network side device, thereby improvinga system gain.

According to one aspect of the present disclosure, an electronicequipment is provided. The electronic equipment includes a processingcircuit configured to: receive, from a user equipment, information aboutN candidate transmitted beams, where N is an integer greater than 1;select, from the N candidate transmitted beams, a transmitted beam fortransmitting downlink information to the user equipment; and determine aTransmission Configuration Indication TCI state according to theselected transmitted beam, and transmit the TCI state to the userequipment.

According to another aspect of the present disclosure, an electronicequipment is provided. The electronic equipment includes a processingcircuit configured to: receive, from a network side device, aTransmission Configuration Indication TCI state; and determine areceived beam for receiving downlink information from the network sidedevice according to the TCI state.

According to another aspect of the present disclosure, a wirelesscommunication method is provided. The wireless communication methodincludes: receiving, from a user equipment, information about Ncandidate transmitted beams, where N is an integer greater than 1;selecting, from the N candidate transmitted beams, a transmitted beamfor transmitting downlink information to the user equipment; anddetermining a Transmission Configuration Indication TCI state accordingto the selected transmitted beam, and transmitting the TCI state to theuser equipment.

According to another aspect of the present disclosure, a wirelesscommunication method is provided. The wireless communication methodincludes: receiving, from a network side device, a TransmissionConfiguration Indication TCI state; and determining a received beam forreceiving downlink information from the network side device according tothe TCI state.

According to another aspect of the present disclosure, acomputer-readable storage medium is provided. The computer-readablestorage medium includes computer-executable instructions, which whenexecuted by a computer, cause the computer to perform the wirelesscommunication method according to the present disclosure.

Using the electronic equipment, the wireless communication method andthe computer-readable storage medium according to the presentdisclosure, the network side device may select a transmitted beam fortransmitting downlink information from N candidate transmitted beamsprovided by the user equipment, and notify information about theselected transmitted beam to the user equipment through the TCI state.Further, the user equipment may determine a received beam for receivingdownlink information based on the received TCI state. In this way, thenetwork side device may provide information about the selectedtransmitted beam to the user equipment, such that the user equipment maydetermine a received beam corresponding to the transmitted beam used bythe network side device to receive downlink information, therebyimproving a system gain.

Further applicability will become apparent from the description providedherein. The description and specific examples are provided only forillustration rather than limitation to the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are for illustrative purposes only insteadof showing all possible implementations, and are not intended to limitthe scope of the present disclosure. In the drawings:

FIG. 1 is a schematic diagram showing an application scenario accordingto an embodiment of the present disclosure;

FIG. 2 is a block diagram showing an example of a configuration of anelectronic equipment according to an embodiment of the presentdisclosure;

FIG. 3(a) is a schematic diagram showing contents of information about Ncandidate transmitted beams according to an embodiment of the presentdisclosure;

FIG. 3(b) is a schematic diagram showing contents of information about Ncandidate transmitted beams according to another embodiment of thepresent disclosure;

FIG. 3(c) is a schematic diagram showing contents of information about Ncandidate transmitted beams according to yet another embodiment of thepresent disclosure;

FIG. 4 is a schematic diagram showing a mapping relation between a TCI(Transmission Configuration Indication) state and resourceidentification information of a SSB (Synchronization Signal Block)according to an embodiment of the present disclosure;

FIG. 5 is a signaling flowchart showing that a network side device and auser equipment obtain a mapping relation between a TCI state andresource identification information of a SSB according to an embodimentof the present disclosure;

FIG. 6 is a block diagram showing an example of a configuration of anelectronic equipment according to another embodiment of the presentdisclosure;

FIG. 7 is a signaling flowchart showing a method for determining atransmitted beam and a received beam according to an embodiment of thepresent disclosure;

FIG. 8 is a schematic diagram showing a first method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure;

FIG. 9 is a schematic diagram showing a second method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure;

FIG. 10 is a schematic diagram showing a third method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure;

FIG. 11(a) is a schematic diagram showing a first mapping tableaccording to an embodiment of the present disclosure;

FIG. 11(b) is a schematic diagram showing a fourth method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure;

FIG. 12(a) is a schematic diagram showing a second mapping tableaccording to an embodiment of the present disclosure;

FIG. 12(b) is a schematic diagram showing a fifth method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure;

FIG. 13 is a schematic diagram showing a process for reporting candidatetransmitted beams according to an embodiment of the present disclosure;

FIG. 14 is a signaling flowchart showing that a user equipment obtains amapping relation between resource identification information of a SSBand a received beam and a mapping relation between a TCI state andresource identification information of the SSB according to anembodiment of the present disclosure;

FIG. 15 is a flowchart showing a wireless communication method performedby an electronic equipment according to an embodiment of the presentdisclosure;

FIG. 16 is a flowchart showing a wireless communication method performedby an electronic equipment according to another embodiment of thepresent disclosure;

FIG. 17 is a block diagram showing a first example of a schematicconfiguration of an eNB (Evolved Node B);

FIG. 18 is a block diagram showing a second example of a schematicconfiguration of an eNB;

FIG. 19 is a block diagram showing an example of a schematicconfiguration of a smart phone; and

FIG. 20 is a block diagram showing an example of a schematicconfiguration of a vehicle navigation device.

While embodiments of the present disclosure may be modified and replacedin various manners, specific embodiments are shown as examples in thedrawings and are described in detail herein. It should be understoodthat description for the specific embodiments is not intended to limitthe present disclosure into a disclosed specific form, and the presentdisclosure aims to cover all modification, equivalents and alternationswithin the spirit and scope of the present disclosure. It is noted thatthroughout the several figures, corresponding reference numeralsindicate corresponding parts.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Examples in the present disclosure will be described more fully withreference to the drawings. The following description is merely exemplaryrather than being intended to limit the present disclosure andapplications or purposes of the present disclosure.

Exemplary embodiments are provided to make the present disclosure beexhaustive and fully convey the scope of the present disclosure to thoseskilled in the art. Examples of numerous specific details, such asspecific components, devices, and methods, are set forth to provide athorough understanding of the embodiments of the present disclosure. Itwill be apparent to those skilled in the art that exemplary embodimentsmay be implemented in many different forms without the use of specificdetails, which should not be construed as limiting the scope of thepresent disclosure. In some exemplary embodiments, well-known processes,well-known structures, and well-known technologies are not described indetail.

The description includes the following sections:

-   -   1. Description of a scenario;    -   2. Configuration example of a network side device;    -   3. Configuration example of a user equipment;    -   4. Method embodiment; and    -   5. Application example.

1. Description of a Scenario

FIG. 1 is a schematic diagram showing an application scenario accordingto the present disclosure. As shown in FIG. 1, 8 transmitted beams of agNB (a base station in 5th generation communications system) are shown,which are numbered 0 to 7 respectively, and 4 received beams of a UE(User Equipment) within coverage range of the gNB are shown, which arenumbered 0 to 3 respectively. In a case that the gNB selects atransmitted beam numbered 5 to transmit downlink data to the UE, the UEshould select a received beam numbered 2 to match the transmitted beam,such that a better receiving effect can be implemented. In this case,the UE needs to obtain information related to the transmitted beamnumbered 5 of the gNB and determine that the received beam numbered 2 isadopted to receive downlink data.

For such a scenario, an electronic equipment in a wireless communicationsystem, a wireless communication method performed by the electronicequipment in the wireless communication system and a computer-readablestorage medium according to the present disclosure are provided, suchthat the user equipment may determine an appropriate received beam basedon a transmitted beam of a network side device, thereby improving asystem gain. It should be noted that, although FIG. 1 shows 8transmitted beams of the gNB, the gNB may also have other number ofmultiple transmitted beams, and although FIG. 1 shows 4 received beamsof the UE, the UE may also have other number of multiple received beams.That is, the present disclosure is applicable to all scenarios in whichthe network side device has multiple transmitted beams and the userequipment has multiple received beams.

Both the network side device and the UE according to the presentdisclosure may be included in a wireless communication system, and thewireless communication system herein may be, for example, a NR (NewRadio) communication system.

The network side device according to the present disclosure may be anytype of TRP (Transmit and Receive Port). The TRP may have functions oftransmission and reception. For example, the TRP may receive informationfrom a user equipment and a base station device and may also transmitinformation to the user equipment and the base station device. In oneexample, the TRP may provide services to the user equipment and iscontrolled by the base station device. That is, the base station deviceprovides services to the user equipment through the TRP. Furthermore,the network side device described in the present disclosure may also bea base station device, such as an eNB or a gNB.

The user equipment according to the present disclosure may beimplemented as a mobile terminal (such as a smart phone, a tabletpersonal computer (PC), a notebook PC, a portable game terminal, aportable/dongle type mobile router, and a digital camera device) or anin-vehicle terminal (such as a vehicle navigation device). The userequipment may also be implemented as a terminal (that is also referredto as a machine type communication (MTC) terminal) that performsmachine-to-machine (M2M) communication. Furthermore, the user equipmentmay be a wireless communication module (such as an integrated circuitmodule including a single chip) mounted on each of the above terminals.

2. Configuration Example of a Network Side Device

FIG. 2 is a block diagram showing an example of a configuration of anelectronic equipment 200 according to an embodiment of the presentdisclosure. The electronic equipment 200 may serve as a network sidedevice in a wireless communication system. Specifically, the electronicequipment 200 may serve as a base station device or a TRP in a wirelesscommunication system.

As shown in FIG. 2, the electronic equipment 200 may include acommunication unit 210, a selecting unit 220 and a determining unit 230.

Various units of the electronic equipment 200 may be included in aprocessing circuit. It should be noted that the electronic equipment 200may include one processing circuit or multiple processing circuits.Further, the processing circuit may include various separated functionalunits to perform various different functions and/or operations. Itshould be noted that these functional units may be physical entities orlogical entities, and units of different names may be implemented by asame physical entity.

According to an embodiment of the present disclosure, the communicationunit 210 may receive information about N candidate transmitted beamsfrom a user equipment. N is an integer greater than 1. According to anembodiment of the present disclosure, the user equipment may be a userequipment to which the electronic equipment 200 provides services. Forexample, in a case that the electronic equipment 200 is a base stationdevice, the user equipment may be a user equipment within coverage rangeof the electronic equipment 200. In a case that the electronic equipment200 is a TRP, the user equipment may be a user equipment to which theelectronic equipment 200 provides services.

According to an embodiment of the present disclosure, the selecting unit220 may select, from the N candidate transmitted beams, a transmittedbeam for transmitting downlink information to the user equipment. The Ncandidate transmitted beams herein are transmitted beams of theelectronic equipment 200 that may be used to transmit downlinkinformation. The selecting unit 220 may select, from N candidatetransmitted beams reported by the user equipment, a transmitted beam fortransmitting downlink information.

According to an embodiment of the present disclosure, the determiningunit 230 may determine a Transmission Configuration Indication TCI statebased on the selected transmitted beam, such that the communication unit210 may transmit the TCI state to the user equipment.

It can be seen that, the electronic equipment 200 according to anembodiment of the present disclosure may select, from N candidatetransmitted beams provided by the user equipment, a transmitted beam fortransmitting downlink information and determine a TCI statecorresponding to the selected transmitted beam, to notify the userequipment. Thus, the electronic equipment 200 may notify informationrelated to the selected transmitted beam to the user equipment by usingthe TCI state, such that the user equipment may obtain informationrelated to the transmitted beam selected by the electronic equipment200, thereby selecting an appropriate received beam.

As shown in FIG. 2, the electronic equipment 200 may also include adecoding unit 240 configured to decode information about the N candidatetransmitted beams.

According to an embodiment of the present disclosure, the decoding unit240 may determine identification information of the N candidatetransmitted beams based on the information about the N candidatetransmitted beams. That is, the decoding unit 240 may decode theinformation about the N candidate transmitted beams, thereby determiningthe identification information of the N candidate transmitted beams.

In the present disclosure, identifications of the transmitted beams maybe represented by identifications of CSI-RS (Channel StateInformation-Reference Signal) resources. This is because a CSI-RS istransmitted using different resources for different transmitted beams.That is, the transmitted beams correspond to the CSI-RS resources one toone. Therefore, the identifications of the transmitted beams may berepresented by the identifications of the CSI-RS resources.

FIG. 3(a) is a schematic diagram showing contents of information about Ncandidate transmitted beams according to an embodiment of the presentdisclosure. As shown in FIG. 3(a), the information about the N candidatetransmitted beams may include identification information of the Ncandidate transmitted beams. N is 4 and identifications of the candidatetransmitted beams are represented by the identifications of the CSI-RSresources. In FIG. 3(a), CSI-RS resource 1 represents a CSI-RS resourcenumbered 1, CSI-RS resource 2 represents a CSI-RS resource numbered 2,CSI-RS resource 3 represents a CSI-RS resource numbered 3, CSI-RSresource 4 represents a CSI-RS resource numbered 4, and the 4 CSI-RSresources correspond to 4 candidate transmitted beams respectively.According to an embodiment of the present disclosure, the decoding unit240 may determine identification information of the N candidatetransmitted beams as shown in FIG. 3(a).

According to an embodiment of the present disclosure, the decoding unit240 may determine order information of the N candidate transmitted beamsbased on the information about the N candidate transmitted beams. Thatis, the decoding unit 240 may decode the information about the Ncandidate transmitted beams, thereby determining the identificationinformation and the order information of the N candidate transmittedbeams. A manner in which the user equipment reports the informationabout the N candidate transmitted beams may be previously agreed betweenthe electronic equipment 200 and the user equipment. For example, theelectronic equipment 200 may configure such information for the userequipment, which will be described in detail hereinafter. In a case thatthe user equipment reports the information about the N candidatetransmitted beams in an ordered manner is previously agreed, forexample, the information about the N candidate transmitted beams issequentially reported in a manner of ascending order or descendingorder, the decoding unit 240 may determine the order information of theN candidate transmitted beams based on encoding order of theidentifications of the N candidate transmitted beams.

As shown in FIG. 3(a), it is assumed that the information of the Ncandidate transmitted beams is reported in a manner of descending orderis previously agreed between the electronic equipment 200 and the userequipment, after the decoding unit 240 sequentially decodes the CSI-RSresource 1, the CSI-RS resource 2, the CSI-RS resource 3 and the CSI-RSresource 4, it is considered that the candidate transmitted beams arearranged in descending order, including: a candidate transmitted beamrepresented by the CSI-RS resource 1; a candidate transmitted beamrepresented by the CSI-RS resource 2; a candidate transmitted beamrepresented by the CSI-RS resource 3; and a candidate transmitted beamrepresented by the CSI-RS resource 4. That is, the candidate transmittedbeam represented by the CSI-RS resource 1 is optimal and the candidatetransmitted beam represented by the CSI-RS resource 4 is the worst.

According to an embodiment of the present disclosure, in a case that thedecoding unit 240 determines the order information of the N candidatetransmitted beams based on the information about the N candidatetransmitted beams, the selecting unit 220 may select a transmitted beamfor transmitting downlink information to the user equipment based on theorder information of the N candidate transmitted beams. For example, theselecting unit 220 may select an optimal transmitted beam in the Ncandidate transmitted beams for transmitting downlink information to theuser equipment.

According to an embodiment of the present disclosure, the decoding unit240 may further determine channel quality information between all or apart of candidate transmitted beams in the N candidate transmitted beamsand the user equipment based on the information about the N candidatetransmitted beams. That is, the decoding unit 240 may decode theinformation of the N candidate transmitted beams, thereby determiningidentification information of the N candidate transmitted beams and thechannel quality information between all or a part of candidatetransmitted beams in the N candidate transmitted beams and the userequipment

According to an embodiment of the present disclosure, the channelquality information may be represented by various parameters, includingbut not limited to RSRP (Reference Signal Receiving Power), RSRQ(Reference Signal Receiving Quality) and BLER (Block Error Rate).

FIG. 3(b) is a schematic diagram showing contents of information about Ncandidate transmitted beams according to another embodiment of thepresent disclosure. As shown in FIG. 3(b), the information about the Ncandidate transmitted beams may include identification information ofthe N candidate transmitted beams and channel quality informationbetween each of the N candidate transmitted beams and a user equipment.N is 4 and identifications of the candidate transmitted beams arerepresented by identifications of CSI-RS resources, and channelqualities between the candidate transmitted beams and the user equipmentare represented by RSRP values. For example, a RSRP between a candidatetransmitted beam represented by the CSI-RS resource 1 and the userequipment is RSRP value 1, a RSRP between a candidate transmitted beamrepresented by the CSI-RS resource 2 and the user equipment is RSRPvalue 2, a RSRP between a candidate transmitted beam represented by theCSI-RS resource 3 and the user equipment is RSRP value 3, and a RSRPbetween a candidate transmitted beam represented by the CSI-RS resource4 and the user equipment is RSRP value 4. That is, FIG. 3(b) shows acase in which the information about the N candidate transmitted beamsincludes the channel quality information between each of the N candidatetransmitted beams and the user equipment. That is, the user equipmentreports the channel quality information between each of the N candidatetransmitted beams and the user equipment when reporting the N candidatetransmitted beams. The report manner used by the user equipment may bereferred to as a “full report”, and the report manner shown in FIG. 3(a)may be referred to as a “partial report”.

FIG. 3(c) is a schematic diagram showing contents of information about Ncandidate transmitted beams according to yet another embodiment of thepresent disclosure. As shown in FIG. 3(c), the information about the Ncandidate transmitted beams may include identification information ofthe N candidate transmitted beams and channel quality informationbetween a part of the N candidate transmitted beams and a userequipment. This report manner may be referred to as a “hybrid report”. Nis 2 and identifications of the candidate transmitted beams arerepresented by identifications of CSI-RS resources, and channelqualities between the candidate transmitted beams and the user equipmentare represented by RSRP values. For example, a RSRP between a candidatetransmitted beam represented by the CSI-RS resource 2 and the userequipment is RSRP value 2, and a RSRP between a candidate transmittedbeam represented by the CSI-RS resource 3 and the user equipment is RSRPvalue 3.

According to an embodiment of the present disclosure, the informationabout the N candidate transmitted beams may only include a maximum valueand a minimum value included in the channel quality information betweenthe N candidate transmitted beams and the user equipment. For example,in FIG. 3(c), it is assumed that among the RSRPs between the 4 candidatetransmitted beams and the user equipment, the RSRP between the candidatetransmitted beam represented by the CSI-RS resource 2 and the userequipment is the maximum value which is RSRP value 2, and the RSRPbetween the candidate transmitted beam represented by the CSI-RSresource 3 and the user equipment is the minimum value which is RSRPvalue 3, the information about the N candidate transmitted beams mayonly include identification information of the 4 candidate transmittedbeams, the RSRP value 2 and the RSRP value 3.

According to an embodiment of the present disclosure, in a case that thedecoding unit 240 determines channel quality information between all ora part of candidate transmitted beams in the N candidate transmittedbeams and the user equipment based on the information about the Ncandidate transmitted beams, the selecting unit 220 may select atransmitted beam for transmitting downlink information to the userequipment based on the channel quality information between the all or apart of candidate transmitted beams and the user equipment. For example,the selecting unit 220 may select a candidate transmitted beam with thebest channel quality for transmitting downlink information to the userequipment.

As described above, the selecting unit 220 may select the transmittedbeam for transmitting downlink information to the user equipment basedon the information about the N candidate transmitted beams. The processof selection may follow criteria such as: the order information of the Ncandidate transmitted beams; and the channel quality information betweenall or a part of the N candidate transmitted beams and the userequipment and the like. Alternatively, the selecting unit 220 may alsoselect a transmitted beam based on other criteria, which are not limitedin the present disclosure. The selecting unit 220 may only select onetransmitted beam for transmitting downlink information. Next, thedetermining unit 230 may determine a TCI state based on the selectedtransmitted beam.

According to an embodiment of the present disclosure, the determiningunit 230 may determine a beam for transmitting a Synchronization SignalBlock SSB corresponding to the selected transmitted beam.

According to an embodiment of the present disclosure, during an initialaccess of the user equipment, the electronic equipment 200 may transmita SSB (which includes a synchronization signal such as a primarysynchronization signal and a secondary synchronization signal) to theuser equipment by using a beam. Similar to transmitting a CSI-RS, a SSBis transmitting using different resources for different beams used fortransmitting the SSB. That is, beams used for transmitting the SSBcorrespond to SSB resources one to one, and therefore, in the presentdisclosure, the beams for transmitting the SSB may be represented byidentifications of the SSB resources. Furthermore, according to anembodiment of the present disclosure, a radiation range in space of thebeams for transmitting the SSB during the initial access is greater thanor equal to a radiation range of transmitted beams for transmittingdownlink information during data transmission. That is, one or moretransmitted beams for transmitting downlink information may be includedin a radiation range of the beams for transmitting the SSB. That is,from the perspective of space, one beam for transmitting a SSB mayinclude one or more transmitted beams for transmitting downlinkinformation.

According to an embodiment of the present disclosure, the determiningunit 230 may determine a beam for transmitting a Synchronization SignalBlock SSB corresponding to the selected transmitted beam, such that aradiation range of the selected transmitted beam is within a radiationrange of a beam for transmitting the SSB corresponding to the selectedtransmitted beam. That is, the determining unit 230 may determine thatthe selected transmitted beam is within a radiation range of which ofbeams for transmitting the SSB, thereby determining that the beam fortransmitting the SSB is a beam for transmitting the SSB corresponding tothe selected transmitted beam, and the beam may be represented byidentification of the SSB resource.

According to an embodiment of the present disclosure, the determiningunit 230 may determine a TCI state to be transmitted to the userequipment based on a mapping relation between the TCI state and the beamfor transmitting the SSB.

FIG. 4 is a schematic diagram showing a mapping relation between a TCIstate and resource identification information of a SSB according to anembodiment of the present disclosure. In FIG. 4, beams for transmittingSSB are represented by identifications of SSB resources. FIG. 4 shows 8identifications of the SSB resources, ranging from SSB resource ID(Identification) 1 to SSB resource ID 8. Therefore, the electronicequipment 200 may use 3-bit TCI state to represent the 8 identificationsof the SSB resources, ranging from 000 to 111. In FIG. 4, QCL (QuasiCo-Location) represents that a relationship between a synchronizationsignal in a SSB and downlink information (for example, CSI-RS)transmitted by a transmitted beam in a space range of beams fortransmitting a SSB is a quasi co-location relation, that is, a userequipment may adopt the same received beam to receive beams fortransmitting the SSB and transmitted beams for transmitting downlinkinformation within a space range of the beams. That is, the TCI may beused for representing that there is a QCL relationship between thesynchronization signal in the SSB and the downlink information (forexample, CSI-RS) transmitted by the transmitted beams. Further, a QCLtype shown in FIG. 4 represents that the QCL type parameter is used fora time domain or a spatial domain. The QCL type shown in FIG. 4 is 4,which represents that the QCL type parameter may be used for the spatialdomain. According to an embodiment of the present disclosure, afterdetermining a beam for transmitting a SSB corresponding to the selectedtransmitted beam, the determining unit 230 may determine a TCI state tobe transmitted based on a mapping relation shown in FIG. 4. For example,it is assumed that the determining unit 230 determines that the beam fortransmitting the SSB corresponding to the selected transmitted beam is abeam represented by SSB resource ID 3, it may be determined that the TCIstate to be transmitted is 010.

As shown in FIG. 2, the electronic equipment 200 may further include anestablishing unit 250 configured to establish a mapping relation betweenthe TCI state and the beam for transmitting a SSB after an initialaccess is completed. The electronic equipment 200 may establish amapping relation as shown in FIG. 4 for each of user equipments. Afterthe initial access of the user equipment is completed, the establishingunit 250 may determine all of beams for transmitting the SSB that can beidentified by the user equipment, and determine a TCI state for each ofbeams based on the beams, thereby establishing a mapping relation asshown in FIG. 4. Further, the communication unit 210 may also transmit,to the user equipment, the mapping relation between the TCI state andthe beam for transmitting the SSB, such that the user equipment maydetermine corresponding beam for transmitting the SSB after receivingthe TCI state.

As shown in FIG. 2, the electronic equipment 200 may further include astorage unit 260 configured to store the mapping relation between theTCI state and the beam for transmitting the SSB, such that thedetermining unit 230 may determine the TCI state to be transmitted tothe user equipment based on the mapping relation between the TCI stateand the beam for transmitting the SSB stored in the storage unit 260.

FIG. 5 is a signaling flowchart showing a network side device and userequipment acquiring a mapping relation between a TCI state and a beam oftransmitting a SSB according to an embodiment of the present disclosure.In FIG. 5, the beam for transmitting the SSB is still represented by aSSB resource ID. As shown in FIG. 5, in step S501, a process of initialaccess is performed between a base station and a user equipment. Thepresent disclosure does not focus on the process of initial access, andtherefore the process is not described in detail. Next, in step S502,the base station establishes a mapping relation between a TCI state anda SSB resource ID and stores the mapping relation. Next, in step 503,the base station transmits the mapping relation between the TCI stateand the SSB resource ID to the user equipment. Thus, both the basestation and the user equipment may obtain and store the mapping relationbetween the TCI state and resource identification information of theSSB.

As described above, there is a mapping relation between the TCI stateand beams for transmitting the SSB to which the selected transmittedbeam belongs, and therefore, the electronic equipment 200 may reportinformation about the selected transmitted beam to the user equipment byusing the TCI state, such that the user equipment may know theinformation about the selected transmitted beam, thereby selecting anappropriate received beam.

According to an embodiment of the present disclosure, the electronicequipment 200 may transmit the TCI state to the user equipment through alow-level signaling, including but not limited to DCI (Downlink ControlInformation)

According to an embodiment of the present disclosure, the communicationunit 200 may periodically receive, from the user equipment, theinformation about the N candidate transmitted beams. Furthermore, thecommunication unit 210 may also send a request to the user equipment torequest the user equipment to report the information about the Ncandidate transmitted beams, thereby obtaining the information about theN candidate transmitted beams. That is, the electronic equipment 200 mayconfigure a manner of reporting the N candidate transmitted beams forthe user equipment as needed. In one exemplary embodiment, thecommunication unit 210 may periodically receive, from the userequipment, the information about the N candidate transmitted beams asshown in FIG. 3(a), and send a request to the user equipment to obtainthe information about the N candidate transmitted beams as shown in FIG.3(b) and FIG. 3(c) if needed.

According to an embodiment of the present disclosure, the electronicequipment 200 may configure the related information about reporting Ncandidate transmitted beams for the user equipment. For example, theelectronic equipment 200 may configure a number of the N candidatetransmitted beams and transmit configuration information about thenumber of the N candidate transmitted beams to the user equipment. In anembodiment, the electronic equipment 200 may transmit the configurationinformation about the number of the N candidate transmitted beams to theuser equipment through a high-level signaling, including but not limitedto an RRC (Radio Resource Control) signaling. In an embodiment, N may be2^(n), where n is a nonnegative integer such as 1, 2, 4 and 8.

According to an embodiment of the present disclosure, the electronicequipment 200 may transmit K transmitted beams to the user equipment forselecting, by the user equipment, N candidate transmitted beams from theK transmitted beams, where K is an integer greater than or equal to N.In an embodiment, K may be 2^(k), where K is a positive integer which ispreferably 4, 8, 16, 32 or 64.

According to an embodiment of the present disclosure, the electronicequipment 200 may configure contents of the information about the Ncandidate transmitted beams which include the full report, the partialreport and the hybrid report as described above, and transmit theconfiguration information of the contents of the information about the Ncandidate transmitted beams to the user equipment. In an embodiment, theelectronic equipment 200 may transmit such configuration information tothe user equipment through the low-level signaling, including but notlimited to DCI. Further, the electronic equipment 200 may configure adefault report manner as the partial report for the user equipment, andtriggers the partial report and the hybrid report if needed. In thiscase, the electronic equipment 200 may use 1 bit to represent suchconfiguration information. For example, the full report is representedby 0 and the hybrid report is represented by 1.

According to an embodiment of the present disclosure, the electronicequipment 200 may configure a encoding mode about the information of theN candidate transmitted beams which are five report manners of the userequipment mentioned below, and transmits configuration information ofthe encoding mode about the information of the N candidate transmittedbeams to the user equipment. In an embodiment, the electronic equipment200 may transmit such configuration information to the user equipmentthrough the low-level signaling, including but not limited to DCI. In anembodiment, the electronic equipment 200 may use 3 bits to representsuch configuration information.

According to an embodiment of the present disclosure, the electronicequipment 200 may configure report triggering modes about theinformation of the N candidate transmitted beams, which include periodictriggering and event triggering. In a case of the periodic triggering,the electronic equipment 200 may transmit configuration informationabout reporting periods of the information of the N candidatetransmitted beams to the user equipment. In a case of the eventtriggering, the electronic equipment 200 may send a request to the userequipment to request to report the information about the N candidatetransmitted beams.

Thus, according to an embodiment of the present disclosure, theelectronic equipment 200 may configure the related information aboutreporting the N candidate transmitted beams for the user equipment.Furthermore, in order to further save overhead, the network side devicemay further set some default configurations. For example, in a case ofconfiguring the periodic report for the user equipment, the partialreport manner may be configured for the user equipment. In a case ofconfiguring the event report for the user equipment, the manners of thefull report and the hybrid report may be configured for the userequipment. Illustration described above is only exemplary, and theelectronic equipment 200 may further configure other information aboutreporting the N candidate transmitted beams.

According to an embodiment of the present disclosure, the TCI state maybe used for indicating a received beam for receiving downlinkinformation to the user equipment. That is, the TCI state is informationassociated with the received beam for receiving the downlink informationby the user equipment. The downlink information may include controllinginformation such as a reference signal (which includes but not limitedto CSI-RS). Specifically, the TCI may be used for representing thatthere is a QCL relation between the synchronization signal in the SSBand the downlink information (for example, CSI-RS) transmitted by thetransmitted beams for transmitting downlink information included in aradiation range of beams for transmitting the SSB. In other words, theTCI state may be used for representing that there is a QCL relationbetween downlink information to be transmitted by the electronicequipment 200 and the synchronization signal transmitted by the beamsfor transmitting the SSB to which the selected transmitted beam belongs.That is, the user equipment may adopt the same received beam to receivea transmitted beam for transmitting downlink information and a beam fortransmitting the SSB corresponding to the transmitted beam fortransmitting the downlink information. In conclusion, the TCI state isinformation associated with the transmitted beams for transmitting thedownlink information by the electronic equipment 200, and the userequipment knows a mapping relation between the transmitted beams and thereceived beams, such that the TCI state may indirectly indicate thereceived beams for receiving the downlink information to the useequipment.

Thus, it can be seen that the electronic equipment 200 according to anembodiment of the present disclosure may select a transmitted beam fortransmitting downlink information from the N candidate transmitted beamsprovided by the user equipment, and determine a TCI state correspondingto the selected transmitted beam to notify the user equipment. Thus, theelectronic equipment 200 may notify the user equipment of informationrelated to the selected transmitted beam by using the TCI state, suchthat the user equipment may obtain the information related to thetransmitted beam selected by the electronic equipment 200, therebyselecting an appropriate received beam.

3. Configuration Example of a User Equipment

FIG. 6 is a block diagram showing a structure of an electronic equipment600 serving as a user equipment in a wireless communication systemaccording to an embodiment of the present disclosure. As shown in FIG.6, the electronic equipment 600 may include a communication unit 610 anda determining unit 620.

Various units of the electronic equipment 600 may be included in aprocessing circuit. It should be noted that the electronic equipment 600may include one processing circuit or multiple processing circuits.Further, the processing circuit may include various separated functionalunits to perform various different functions and/or operations. Itshould be noted that these functional units may be physical entities orlogical entities, and units of different names may be implemented by asame physical entity.

According to an embodiment of the present disclosure, the communicationunit 610 may receive, from a network side device, a TransmissionConfiguration Indication TCI state. The network side device may be anetwork side device providing services to the electronic equipment 600,and may be implemented by the electronic equipment 200 described above.

According to an embodiment of the present disclosure, the determiningunit 620 may determine a received beam for receiving downlinkinformation from the network side device based on the TCI state.

Thus, it can be seen that the electronic equipment 600 according to anembodiment of the present disclosure may determine a received beam forreceiving downlink information based on a TCI state received from thenetwork side device. As described above, the TCI state received from thenetwork side device is associated with a transmitted beam selected bythe network side device, such that the electronic equipment 600 mayselect an appropriate received beam based on the transmitted beam,thereby improving a system gain.

FIG. 7 is a signaling flowchart showing a method for determining atransmitted beam and a received beam according to an embodiment of thepresent disclosure. As shown in FIG. 7, in step S701, a UE transmitsinformation about N candidate transmitted beams to a base station. Next,in step S702, the base station selects, from the N candidate transmittedbeams, a transmitted beam for transmitting downlink information to theUE. Next, in step S703, the base station determines a TCI state based onthe selected transmitted beam and transmits the TCI state to the UE.Next, in step S704, the UE determines a received beam for receiving thedownlink information based on the received TCI state. Therefore, the UEmay determine an appropriate received beam based on the transmitted beamselected by the base station.

According to an embodiment of the present disclosure, the electronicequipment 600 may receive the TCI state from the network side devicebased on the low-level signaling, including but not limited to DCI.

According to an embodiment of the present disclosure, the communicationunit 610 may further transmit, to the network side device, informationabout N candidate transmitted beams for selecting, by the network sidedevice, a transmitted beam for transmitting downlink information to theelectronic equipment from the N candidate transmitted beams, anddetermine the TCI state based on the selected transmitted beam, where Nis an integer greater than 1.

According to an embodiment of the present disclosure, the communicationunit 610 may receive K transmitted beams of the network side device fromthe network side device. Further, as shown in FIG. 6, the electronicequipment 600 may further include a selecting unit 630 configured todetermine the N candidate transmitted beams based on channel qualitybetween the K transmitted beams of the network side device and theelectronic equipment 600, where K is an integer greater than or equal toN. That is, the selecting unit 630 may measure channel quality betweeneach of the K transmitted beams and the electronic equipment 600, andselects, from the K transmitted beams, N transmitted beams with goodchannel quality as candidate transmitted beams based on the channelquality.

According to an embodiment of the present disclosure, the selecting unit630 may determine the channel quality based on one or more of parametersincluding RSRP, RSRQ and BLER. Each of the above parameters may includemultiple parameters. For example, the BLER may include a BLER for PDCCH(Physical Downlink Control Channel) and a BLER for PDSCH (PhysicalDownlink Share Channel).

According to an embodiments of the present disclosure, in a case ofdetermining the channel quality based on one parameter such as RSRP, forexample, the selecting unit 630 may measure a RSRP value between each ofthe K transmitted beams and the electronic equipment 600, and selects,from the K transmitted beams, N transmitted beam with the highest RSRPvalues as candidate transmitted beams. A case that the channel qualityis represent by the RSRQ and the BLER is similar to the case that thechannel quality is represent by the RSRP.

According to an embodiment of the present disclosure, the selecting unit630 may further determine the channel quality based on two parameters.For example, the selecting unit 630 may select a transmitted beam thatmeets the two following conditions as a candidate transmitted beam,including: a first channel quality parameter between the transmittedbeam and the electronic equipment 600 meets a condition defined by afirst channel quality parameter threshold (for example, the firstchannel quality parameter is greater than or less than the first channelquality parameter threshold, which depends on a specific representationof the first channel quality parameter. For example, in a case that thefirst channel quality parameter is the RSRP or the RSRQ, the firstchannel quality parameter needs to be greater than the first channelquality parameter threshold; in a case that the first channel qualityparameter is the BLER, the first channel quality parameter needs to beless than the first channel quality parameter threshold; and such acriterion also applies to other channel quality parameters); and asecond channel quality parameter between the transmitted beam and theelectronic equipment 600 is the best top N of the second channel qualityparameters of all transmitted beams.

The selecting unit 630 may implement the above selection by thefollowing steps: first, the selection unit 630 may select, from the Ktransmitted beams, transmitted beams that the first channel qualityparameter between the electronic equipment 600 and the transmitted beamsis greater than or less than the first channel quality parameterthreshold; and then, the selecting unit 630 may select, from the abovetransmitted beams, transmitted beams with the top N ranked secondchannel quality parameter as candidate transmitted beams.

According to an embodiment of the present disclosure, each of the RSRP,the RSRQ and the BLER may include multiple parameters, and therefore,there may be more than two conditions that a transmitted beam needs tomeet. For example, the selecting unit 630 may also select a transmittedbeam that meets the following three conditions as a candidatetransmitted beam: the first channel quality parameter between thetransmitted beam and the electronic equipment 600 meets a conditiondefined by the first channel quality parameter threshold; a thirdchannel quality parameter between the transmitted beam and theelectronic equipment 600 meets a condition defined by a third channelquality parameter threshold (for example, the third channel qualityparameter is greater than or less than the third channel qualityparameter threshold, which depends on a specific representation of thethird channel quality parameter. For example, in a case that the thirdchannel quality parameter is the RSRP or the RSRQ, the third channelquality parameter needs to be greater than the third channel qualityparameter threshold; and in a case that the third channel qualityparameter is the BLER, the third channel quality parameter needs to beless than the third channel quality parameter threshold); and the secondchannel quality parameter between the transmitted beam and theelectronic equipment 600 is the best top N of the second channel qualityparameters of all transmitted beams.

The selecting unit 630 may implement the above selection by thefollowing steps: first, the selecting unit 630 may select, from the Ktransmitted beams, multiple transmitted beams that meet the followingconditions: the first channel quality parameter between each of themultiple transmitted beams and the electronic equipment 600 is greaterthan or less than the first channel quality parameter threshold and thethird channel quality parameter between each of the multiple transmittedbeams and the electronic equipment 600 is greater than or less than thethird channel quality parameter threshold; and then, the selecting unit630 may select transmitted beams with the top N ranked second channelquality parameter from the multiple transmitted beams that meetconditions as candidate transmitted beams.

A specific example is given below. The BLER for the PDSCH is defined asthe first channel quality parameter, the BLER for the PDCCH is definedas the third channel quality parameter, and the RSRP is defined as thesecond channel quality parameter. The first channel quality parameterthreshold is 10% and the third channel quality parameter threshold is1%. First, the selecting unit 630 may select transmitted beams with theBLER for the PDSCH which is less than 10% and the BLER for the PDCCHwhich is less than 1%; and then, the selecting unit 630 ranks thetransmitted beams that meet the above conditions in order of large tosmall RSRP values, and selects the ranked top N transmitted beams ascandidate transmitted beams.

As described above, an embodiment that the selecting unit 630 selectsthe N candidate transmitted beams based on one or two parameters isshown in an exemplary way. Alternatively, the selecting unit 630 mayalso select N candidate transmitted beams based on other criteria andmay also select N candidate transmitted beams based on more parameters,such that the channel quality of the selected N candidate transmittedbeams is good. Next, the electronic equipment 600 may report theselected N candidate transmitted beams to the network side device.

As shown in FIG. 6, the electronic equipment 600 may further include aencoding unit 640 configured to encode information of the N candidatetransmitted beams to generate information about the N candidatetransmitted beams for transmitting to the network side device.

According to an embodiment of the present disclosure, as shown in FIG.3(a), the information about the N candidate transmitted beams mayinclude identification information of the N candidate transmitted beams.Further, the information about the N candidate transmitted beams mayinclude order information of the N candidate transmitted beams. Forexample, in a case that an ordered manner is agreed between theelectronic equipment 600 and the network side device to report the Ncandidate transmitted beams, the encoding unit 640 may sequentiallyencode the information of the N candidate transmitted beams in a mannerof descending order or ascending order. Furthermore, as shown in FIG.3(b) and FIG. 3(c), the information of the N candidate transmitted beamsmay include the channel quality information between all or a part ofcandidate transmitted beams in the N candidate transmitted beams and theelectronic equipment 600.

According to an embodiment of the present disclosure, the encoding unit640 may express the identification of each of the N candidatetransmitted beams by using binary coding. The encoding unit 640 maydetermine number of bits of the binary coding based on value of K. Forexample, in a case that K=8, that is, the electronic equipment 600selects N candidate transmitted beams from 8 transmitted beams, theencoding unit 640 may express the identification of each of thecandidate transmitted beams by using 3-bit binary coding.

FIG. 8 is a schematic diagram showing a first method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure. As shown in FIG. 8, it is assumed that K=8 and N=4. Theselecting unit 630 selects 4 transmitted beams from 8 transmitted beams(t CSI-RS resource 0 to 7), including: a transmitted beam represented byCSI-RS resource 2; a transmitted beam represented by CSI-RS resource 4;a transmitted beam represented by CSI-RS resource 3; a transmitted beamrepresented by CSI-RS resource 7, and the 4 transmitted beams arearranged in a descending order in direction of arrow. That is, thetransmitted beam represented by the CSI-RS resource 2 is best and thetransmitted beam represented by the CSI-RS resource 7 is worst.According to an embodiment of the present disclosure, the encoding unit640 may determine that the identification of each of the candidatetransmitted beams is expressed by 3 bits. That is, the transmitted beamrepresented by the CSI-RS resource 2 is expressed by 010, thetransmitted beam represented by the CSI-RS resource 4 is expressed by100, the transmitted beam represented by the CSI-RS resource 3 isexpressed by 011, and the transmitted beam represented by the CSI-RSresource 7 is expressed by 111. Next, the encoding unit 640 may combinethe identification information of the N candidate transmitted beams togenerate final report information. As shown in FIG. 8, the informationabout the N candidate transmitted beams is expressed by 010100011111.Furthermore, the information about the N candidate transmitted beamsshown in FIG. 8 includes the order information of the N candidatetransmitted beams. That is, the network side device may obtain the orderinformation of the N candidate transmitted beams when decoding theinformation of the N candidate transmitted beams. If the 4 candidatetransmitted beams as shown in FIG. 8 are reported in unordered manner,the order of identification information of the 4 candidate transmittedbeams after being encoded may be changed. For example, the reportedinformation may be expressed by 010011100111.

According to an embodiment of the present disclosure, the encoding unit640 may express the identification of the N candidate transmitted beamsby using a bit map. That is, the encoding unit 640 may determine bits ofthe bit map based on value of K. A bit in the bit map of 1 indicatesthat a transmitted beam corresponding to the bit is selected as acandidate transmitted beam and a bit in the bit map of 0 indicates thata transmitted beam corresponding to the bit is not selected as acandidate transmitted beam.

FIG. 9 is a schematic diagram showing a second method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure. As shown in FIG. 9, it is still assumed that K=8, N=4, andthe selecting unit 630 selects 4 transmitted beams from 8 transmittedbeams (CSI-RS resource 0 to 7), including: a transmitted beamrepresented by CSI-RS resource 2; a transmitted beam represented byCSI-RS resource 4; a transmitted beam represented by CSI-RS resource 3;a transmitted beam represented by CSI-RS resource 7, and the 4transmitted beams are arranged in a descending order in direction ofarrow. The encoding unit 640 may determine that identificationinformation of the 4 candidate transmitted beams is expressed by usingan 8-bit bit map. That is, 8 bits of the bit map correspond totransmitted beams represented by CSI-RS resource 0 to 7 respectively.Then the bit map as shown in FIG. 9 may be determined, such that theencoding unit 640 may determine that the report information is expressedby 00111001. The information about the N candidate transmitted beams asshown in FIG. 9 only includes identification information of the Ncandidate transmitted beams without order information of the N candidatetransmitted beams. That is, a network side device does not know theorder information of the N candidate transmitted beams when decoding theinformation of the N candidate transmitted beams.

According to an embodiment of the present disclosure, the encoding unit640 may express the identification of a reference candidate transmittedbeam in the N candidate transmitted beams by using the binary coding,and express the identification of other candidate transmitted beams inaddition to the reference candidate transmitted beam in the N candidatetransmitted beams by using binary coding of a difference value betweenidentifications of other candidate transmitted beams and the referencecandidate transmitted beam. The encoding unit 640 may select a candidatetransmitted beam closest to an intermediate position of all transmittedbeams as a reference candidate transmitted beam, and express theidentification of the reference candidate transmitted beam by using thebinary coding. The identification of other candidate transmitted beamsis expressed by using binary coding of a difference value betweenidentifications of other candidate transmitted beams and the referencecandidate transmitted beam. Further, the encoding unit 640 may determinewhether the difference value between identifications of other candidatetransmitted beams and the reference candidate transmitted beam ispositive or negative, based on an encoding order of identifications ofother candidate transmitted beams and the reference candidatetransmitted beam. For example, the encoding unit 640 may determine adifference value between identifications of the reference candidatetransmitted beam and candidate transmitted beam that is encoded beforethe identification of the reference candidate transmitted beam isnegative, and may determine a difference value between identificationsof the reference candidate transmitted beam and candidate transmittedbeam that is encoded after the identification of the reference candidatetransmitted beam is positive.

FIG. 10 is a schematic diagram showing a third method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure. As shown in FIG. 10, it is still assumed that K=8, N=4, andthe selecting unit 630 selects 4 transmitted beams from 8 transmittedbeams (CSI-RS resource 0 to 7), including: a transmitted beamrepresented by CSI-RS resource 2; a transmitted beam represented byCSI-RS resource 4; a transmitted beam represented by CSI-RS resource 3;a transmitted beam represented by CSI-RS resource 7, and the 4transmitted beams are arranged in a descending order in direction ofarrow. Since the candidate transmitted beam represented by the CSI-RSresource 3 and the candidate transmitted beam represented by the CSI-RSresource 4 are located in an intermediate position of the 8 candidatetransmitted beams, the candidate transmitted beam represented by theCSI-RS resource 3 or the candidate transmitted beam represented by theCSI-RS resource 4 may be selected as a reference candidate transmittedbeam. In FIG. 10, the candidate transmitted beam represented by theCSI-RS resource 4 is selected as the reference candidate transmittedbeam. As shown in FIG. 10, the encoding unit 640 representsidentification information of the candidate transmitted beam representedby the CSI-RS resource 4 by using binary coding 100. Next, the encodingunit 640 calculates that a difference value between the CSI-RS resource2 and the CSI-RS resource 4 is 2 and is negative, and therefore,identification information of the candidate transmitted beam representedby the CSI-RS resource 2 is expressed by 10 and the identificationinformation should be encoded before identification information of thereference candidate transmitted beam. Similarly, the encoding unit 640calculates that a difference value between the CSI-RS resource 3 and theCSI-RS resource 4 is 1 and is negative, and therefore, identificationinformation of the candidate transmitted beam represented by the CSI-RSresource 3 is expressed by 01 and the identification information shouldbe encoded before the identification information of the referencecandidate transmitted beam. The encoding unit 640 calculates that adifference value between the CSI-RS resource 7 and the CSI-RS resource 4is 3 and is positive, and therefore, identification information of thecandidate transmitted beam represented by the CSI-RS resource 7 isexpressed by 11 and the identification information should be encodedafter the identification information of the reference candidatetransmitted beam. As shown in FIG. 10, the information about the Ncandidate transmitted beams that is finally determined by the encodingunit 640 is expressed by 100110011. The information about the Ncandidate transmitted beams as shown in FIG. 10 only includes theidentical information about the N candidate transmitted beams withoutorder information of the N candidate transmitted beams. That is, anetwork side device does not know the order information of the Ncandidate transmitted beams when decoding the information of the Ncandidate transmitted beams. Further, since the identification of thereference candidate transmitted beam is one bit more than that ofidentifications of other candidate transmitted beams, the network sidedevice may determine a reference candidate transmitted beam whenreceiving the information of the N candidate transmitted beams, and maydetermine whether the difference value is positive or negative based ona context between other candidate transmitted beams and the referencecandidate transmitted beam, thereby decoding identifications of allcandidate transmitted beams.

According to an embodiment of the present disclosure, the encoding unit640 may further be configured such that the bits of identification ofthe reference candidate transmitted beam are more than the bits ofidentifications of other candidate transmitted beams in addition to thereference candidate transmitted beam. Further, the encoding unit 640 mayimplement the above effect by performing zero padding before the binarycoding of the identification of the reference candidate transmittedbeam. That is, if the encoding unit 640 determines that the bits ofidentification of the reference candidate transmitted beam are the sameas the bits of the identifications of other candidate transmitted beams,the encoding unit 640 may perform zero padding before the binary codingof the identification of the reference candidate transmitted beam, suchthat the bits of the identification of the reference candidatetransmitted beam are more than the bits of the identifications of othercandidate transmitted beams.

According to an embodiment of the present disclosure, as shown in FIG.6, the electronic equipment 600 may further include a storage unit 650configured to store a first mapping table, which stores a mappingrelation between the combination of the N candidate transmitted beamsselected from the K transmitted beams of the network side device and thecombination identification. Further, a storage unit of the network sidedevice may also store the first mapping table. The first mapping tablemay be stored in advance in the storage unit of the electronic equipment600 and the storage unit of the network side device. Furthermore, thefirst mapping table may be established by the network side device andtransmitted to the electronic equipment 600 through a high-levelsignaling, including but not limited to an RRC signaling.

FIG. 11(a) is a schematic diagram showing a first mapping tableaccording to an embodiment of the present disclosure. FIG. 11(a) shows acase that K=4 and N=2. That is, the electronic equipment 600 needs toselect 2 candidate transmitted beams from 4 transmitted beams (CSIresource 0 to 3). The left side of FIG. 11(a) shows all combinations ofthe 2 candidate transmitted beams selected from the 4 transmitted beamsand the right side of FIG. 11(a) shows combination identificationscorresponding to the combinations. For example, 1100 shown in the leftside expresses that a transmitted beam represented by the CSI-RSresource 0 and a transmitted beam represented by the CSI-RS resource 1are selected, and a combination identification corresponding to thiscombination is expressed by 000. Bits required by combinationidentifications may be determined based on the total number of thecombinations. For example, the total number of the combinations iscalculated to be 6 according to a formula C₄ ², to determine that 3 bitsare required to express the combination identifications.

According to an embodiment of the present disclosure, the encoding unit640 may determine combination identification corresponding to thecombination based on a first mapping table and an unordered combinationof the N candidate transmitted beams, and express the identification ofthe N candidate transmitted beams by using the combinationidentification.

FIG. 11(b) is a schematic diagram showing a fourth method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure. As shown in FIG. 11(b), it is assumed that K=4 and N=2. Theselecting unit 630 selects 2 transmitted beams from 4 transmitted beams,including: a transmitted beam represented by CSI-RS resource 1 and atransmitted beam represented by CSI-RS resource 3, and the 2 transmittedbeams are arranged in a descending order in direction of arrow.According to an embodiment of the present disclosure, the encoding unit640 may determine that an unordered combination of the transmitted beamrepresented by the CSI-RS resource 1 and the transmitted beamrepresented by the CSI-RS resource 3 is expressed by 0101 as shown inFIG. 11(a), thereby determining that a combination identificationcorresponding to the unordered combination is expressed by 100. Thus,the encoding unit 640 may determine that information about the Ncandidate transmitted beams is expressed by 100. The information aboutthe N candidate transmitted beams as shown in FIG. 11(b) only includesidentification information of the N candidate transmitted beams withoutorder information of the N candidate transmitted beams. That is, anetwork side device does not know the order information of the Ncandidate transmitted beams when decoding the information about the Ncandidate transmitted beams. Furthermore, the network side device maydetermine identifications of the N candidate transmitted beams based ona first mapping table stored in advance when receiving such information.

According to an embodiment of the present disclosure, the storage unit650 may also store a second mapping table, which stores a mappingrelation between an arrangement of N candidate transmitted beamsselected from the K transmitted beams of the network side device andarrangement identification. Further, a storage unit of the network sidedevice may also store the second mapping table. The second mapping tablemay be stored in advance in the storage unit of the electronic equipment600 and the storage unit of the network side device. Furthermore, thesecond mapping table may be established by the network side device andtransmitted to the electronic equipment 600 through a high-levelsignaling, including but not limited to an RRC signaling.

FIG. 12(a) is a schematic diagram showing a second mapping tableaccording to an embodiment of the present disclosure. FIG. 12(a) shows acase that K=4 and N=2. That is, the electronic equipment 600 needs toselect an ordered arrangement of 2 candidate transmitted beams from 4transmitted beams (CSI resource 0 to 3). The left side of FIG. 12(a)shows all arrangements of 2 candidate transmitted beams selected fromthe 4 transmitted beams, and the right side of FIG. 12(a) showsarrangement identifications corresponding to the arrangements. Forexample, 0001 shown in the left side expresses that a transmitted beamrepresented by CSI-RS resource 0 and a transmitted beam represented byCSI-RS resource 1 are selected, and the transmitted beam represented bythe CSI-RS resource 0 and the transmitted beam represented by the CSI-RSresource 1 are arranged in a descending order, and arrangementidentification corresponding to this arrangement is expressed by 0000.As another example, 0010 shown in the left side expresses that atransmitted beam represented by the CSI-RS resource 0 and a transmittedbeam represented by CSI-RS resource 2 are selected, and the transmittedbeam represented by the CSI-RS resource 0 and the transmitted beamrepresented by the CSI-RS resource 2 are arranged in a descending order,and arrangement identification corresponding to this arrangement isexpressed by 0001. Bits required by arrangement identifications may bedetermined based on the total number of arrangements. For example, thetotal number of the arrangements is calculated to be 12 according to aformula A₄ ², to determine that 4 bits are required to express thearrangement identifications.

According to an embodiment of the present disclosure, the encoding unit640 may determine arrangement identification corresponding to thearrangement based on the second mapping table and an ordered arrangementof the N candidate transmitted beams, and express identification andorder of the N candidate transmitted beams by using the arrangementidentification.

FIG. 12(b) is a schematic diagram showing a fifth method for reportingcandidate transmitted beams according to an embodiment of the presentdisclosure. As shown in FIG. 12(b), it is assumed that K=4 and N=2. Theselecting unit 630 selects 2 transmitted beams from 4 transmitted beams,including: a transmitted beam represented by CSI-RS resource 1 and atransmitted beam represented by CSI-RS resource 3, and the 2 transmittedbeams are arranged in a descending order in direction of arrow.According to an embodiment of the present disclosure, the encoding unit640 may determine that an ordered arrangement of the transmitted beamrepresented by the CSI-RS resource 1 and the transmitted beamrepresented by the CSI-RS resource 3 is expressed by 01, 11 shown inFIG. 12(a), thereby determining that arrangement identificationcorresponding to this arrangement is expressed by 0101. Thus, theencoding unit 640 may determine that information about the N candidatetransmitted beams is expressed by 0101. The information about the Ncandidate transmitted beams shown in FIG. 12(b) includes not onlyidentification information of the N candidate transmitted beams, butalso order information of the N candidate transmitted beams. That is,the network side device knows the order information of the N candidatetransmitted beams when decoding the information about the N candidatetransmitted beams. Furthermore, the network side device may determineidentification and order of the N candidate transmitted beams based on asecond mapping table stored in advance when receiving such information.

As described above, FIG. 8, FIG. 9, FIG. 10, FIG. 11(b) and FIG. 12(b)show five methods for reporting candidate transmitted beams according toan embodiment of the present disclosure, respectively. Among thesereporting methods, only a method for decoding identifications of the Ncandidate transmitted beams is shown, and a method for decoding channelquality information is not shown. Further, in a case that theinformation about the N candidate transmitted beams includes channelquality information between all or a part of candidate transmitted beamsand the electronic equipment 600, the encoding unit 640 may encode thechannel quality information according to any one of methods well-knownin the art, and may add an encoding of the channel quality informationbetween the candidate transmitted beams and the electronic equipment600, which is not described in detail in the present disclosure.

As described above, the selecting unit 630 may select N candidatetransmitted beams, and the encoding unit 640 may encode informationabout the N candidate transmitted beams. Further, according to anembodiment of the present disclosure, the selecting unit 630 may alsoselect less than N candidate transmitted beams. For example, afterselecting N candidate transmitted beams, the selecting unit 630 may alsodetermine that whether a second channel quality parameter between the Ncandidate transmitted beams and the electronic equipment 600 meets acondition defined by a second channel quality parameter threshold (forexample, the second channel quality parameter is greater than or lessthan the second channel quality parameter threshold, which depends on aspecific representation of the second channel quality parameter. Forexample, in a case that the second channel quality parameter is the RSRPor the RSRQ, the second channel quality parameter need to be greaterthan the second channel quality parameter threshold, and in a case thatthe second channel quality parameter is the BLER, the second channelquality parameter need to be less than the second channel qualityparameter threshold). Further, the selecting unit 630 may removecandidate transmitted beams which do not meet the condition defined bythe second channel quality parameter threshold from the N candidatetransmitted beams. In the above embodiment, if candidate transmittedbeams selected by the selecting unit 630 is less than N, the encodingunit 640 may select the first reporting method, the second reportingmethod and the third reporting method to report the candidatetransmitted beams. Further, in the first reporting method and the secondreporting method, the encoding unit 640 may encode identificationinformation of the removed candidate transmitted beam as 0. For example,it is assumed that a second channel quality parameter of a transmittedbeam represented by CSI-RS resource 7 does not meet the conditiondefined by the second channel quality parameter threshold, in an exampleshown in FIG. 8, reported information may be expressed by 0101000110; inan example shown in FIG. 9, reported information may be expressed by00111000; and in an example shown in FIG. 10, reported information maybe expressed by 10011000.

According to an embodiment of the present disclosure, the selecting unit630 may select N candidate transmitted beams further based on the secondchannel quality parameter threshold, such that candidate transmittedbeams with poor channel quality parameter are removed, thereby furtherreducing overhead.

According to an embodiment of the present disclosure, the communicationunit 610 may receive configuration information about the number of the Ncandidate transmitted beams from the network side device, for example,through a high-level signaling (which includes but not limited to an RRCsignaling). Furthermore, the communication unit 610 may also send arequest to the network side device to request to reconfigure the numberof N, and may receive reconfiguration information about the number ofthe N candidate transmitted beams from the network side device, forexample, through a low-level signaling (which includes but not limitedto DCI).

According to an embodiment of the present disclosure, the communicationunit 610 may also receive configuration information of reporting methodsfrom the network side device, for example, through a high-levelsignaling (which includes but not limited to an RRC signaling). One ofthe five reporting methods may be expressed by 3 bits. Furthermore, thecommunication unit 610 may also send a request to the network sidedevice to request to reconfigure the reporting method, and receivereconfiguration information of the reporting method from the networkside device, for example, through a low-level signaling (which includesbut not limited to DCI).

Table 1 shows overhead required by the above five methods. The unit ofnumbers in the table is number of bits. For the fourth method and thefifth method, only the number of bits required in a case of reportingthe N candidate transmitted beams is shown, and the number of bitsrequired to store the first mapping table and the second mapping tableis not shown. Furthermore, Table 1 only shows a case that K=[4, 8, 16,32, 64] and N=[1, 2, 4, 8] where K is greater than or equal to N.

TABLE 1 The third The second The fourth The first The fifth methodmethod method method method (unor- (unor- (unor- (ordered) (ordered)dered) dered) dered) K = 4, 2 2 2 4 2 N = 1 K = 4, 4 4 3~4 4 3 N = 2 K =4, 8 5 6 4 1 N = 4 K = 8, 3 3 3 8 3 N = 1 K = 8, 6 6 4~6 8 5 N = 2 K =8, 12 11  9~10 8 7 N = 4 K = 8, 24 16 13  8 1 N = 8 K = 16, 4 4 4 16 4 N= 1 K = 16, 8 8 5~8 16 7 N = 2 K = 16, 16 16  8~13 16 11 N = 4 K = 16,32 29 17~25 16 14 N = 8 K = 32, 5 5 5 32 5 N = 1 K = 32, 10 10  6~10 329 N = 2 K = 32, 20 20  9~17 32 16 N = 4 K = 32, 40 39 18~33 32 24 N = 8K = 64, 6 6 6 64 6 N = 1 K = 64, 12 12  7~12 64 11 N = 2 K = 64, 24 2410~21 64 20 N = 4 K = 64, 48 48 19~41 64 33 N = 8

According to an embodiment of the present disclosure, the network sidedevice may select a reporting method based on values of K and N, toreduce overhead required for reporting. In an embodiment, in a case thatN/K≥0.5 and K>16, the second method may be selected; in a case that K=N,the fourth method may be selected; in a case that N≥8, K≥16 and N/K<0.5,the third method may be selected; and in a case that N≤4 and K≤16, thefourth method may be selected. Alternatively, the above-describedembodiment is only exemplary, and the network side device may select areporting method according to actual situations.

According to an embodiment of the present disclosure, the electronicequipment 600 may periodically transmit the information about the Ncandidate transmitted beams to the network side device. Further, theelectronic equipment 600 may also transmit the information about the Ncandidate transmitted beams in response to a request of the network sidedevice. That is, the electronic equipment 600 transmits the informationabout the N candidate transmitted beams to the network side device whenreceiving a request of the network side device.

According to an embodiment of the present disclosure, the electronicequipment 600 may receive, from the network side device, configurationinformation of contents in the information of the N candidatetransmitted beams, for example, through a low-level signaling (whichincludes but not limited to DCI), which includes the full report, thepartial report and the hybrid report. The full report represents thatthe identification information of the N candidate transmitted beams andthe channel quality information between each of the N candidatetransmitted beams and the electronic equipment 600 are required to bereported, as shown in FIG. 3(b). The partial report represents that onlythe identification information of the N candidate transmitted beams isrequired to be reported, as shown in FIG. 3(a). The hybrid reportrepresents that the identification information of the N candidatetransmitted beams and maximum and minimum values of the channel qualityinformation between the N candidate transmitted beams and the electronicequipment 600 are required to be reported, as shown in FIG. 3(c).

That is, the network side device may configure contents, triggeringmodes and reporting methods included in the information about the Ncandidate transmitted beams. Furthermore, in order to further reduceoverhead for reporting, the network side device may also configure theabove information based on a certain criterion. For example, in a casethat the partial report is configured for the electronic equipment 600,only the first reporting method and the fifth reporting method (that is,the ordered reporting method) may be adopted; and in a case that thefull report and the hybrid report are configured for the electronicequipment 600, only the second reporting method, the third reportingmethod and the fourth reporting method (that is, the unordered reportingmethod) may be adopted. As another example, in a case that the periodicreport is configured for the electronic equipment 600, a manner of thepartial report may be configured for the electronic equipment 600; andin a case that the event report is configured for the electronicequipment 600, a manner of the full report and the hybrid report may beconfigured for the electronic equipment 600. In this case, theelectronic equipment 600 may receive, from the network side device,indicating information indicating the full report or the hybrid report,for example, indicating by using 1-bit information. Further, in a casethat the third reporting method is configured for the electronicequipment 600, a manner of the full report method may be configured forthe electronic equipment 600. Alternatively, the above criteria are onlyexemplary preferred manner and have no limiting effect.

Table 2 shows preferred manners of configuring, by the network sidedevice, reporting information for the electronic equipment 600.

TABLE 2 Reporting method Triggering mode Reporting content First methodPeriodic Partial report (ordered) Second method Event Full report or(unordered) hybrid report Third method Event Full report (unordered)Fourth method Event Full report or (unordered) hybrid report Fifthmethod Periodic Partial report (ordered)

FIG. 13 is a schematic diagram showing a process for reporting candidatetransmitted beams according to an embodiment of the present disclosure.As shown in FIG. 13, a UE periodically report information of N candidatetransmitted beams to a base station in a partial report manner, suchthat the base station transmits a TCI state to the UE. The base stationmay also transmit an indication for requesting a non-periodic report tothe UE. For example, 1 bit may be used to indicate whether the fullreporting manner or the hybrid reporting manner is used, and the UE mayreport the information about the N candidate transmitted beams to thebase station in the full reporting manner or the hybrid reporting mannerin response to such indication. As described above, FIG. 13 only showsan exemplary embodiment regarding report, which is not limiting.

A process in which the electronic equipment 600 reports the informationabout the N candidate transmitted beams to the network side device isdescribed in detail above. How the electronic equipment 600 determinesan appropriate received beam based on the received TCI state isdescribed in detail below.

According to an embodiment of the present disclosure, the determiningunit 620 may determine, based on a mapping relation between the TCIstate and a beam for transmitting a Synchronization Signal Block SSB, abeam for transmitting the SSB.

According to an embodiment of the present disclosure, the communicationunit 610 may receive, after an initial access is completed, from thenetwork side device the mapping relation between the TCI state and thebeam for transmitting the SSB. Further, the electronic equipment 600 maystore the mapping relation between the TCI state and the beam fortransmitting the SSB in the storage unit 650. The mapping relationbetween the TCI state and the beam for transmitting the SSB isestablished by the network side device, as shown in above FIG. 4, whichis not repeated herein. For example, the electronic equipment 600 maydetermine a beam for transmitting the SSB represented by SSB resourceID5 based on the mapping relation shown in FIG. 4 when receiving a TCIstate of 100.

According to an embodiment of the present disclosure, the determiningunit 620 may determine a received beam for receiving downlinkinformation from the network side device based on a mapping relationbetween the beam for transmitting the SSB and the received beam.

As shown in FIG. 6, the electronic equipment 600 may include aestablishing unit 660 configured to establish, in the process of initialaccess, the mapping relation between the beam for transmitting the SSBand the received beam. Also, the beam for transmitting the SSB may berepresented by resource identification information of the SSB. Duringthe process of initial access, the network side device may transmit theSSB to the electronic equipment 600, and the electronic equipment 600uses the received beam to receive the SSB transmitted by the networkside device, and may record which received beam is used to receive whichbeam for transmitting the SSB, so as to gradually establish a mappingrelation between the received beam and the beam for transmitting theSSB. Further, the electronic equipment 600 may store the mappingrelation between the beam for transmitting the SSB and the received beamin the storage unit. For example, the electronic equipment 600 maydetermine the beam for transmitting the SSB represented by the SSBresource ID5 based on the mapping relation shown in FIG. 4 whenreceiving a TCI state of 100, and may determine the correspondingreceived beam based on the mapping relation between the beam fortransmitting the SSB and the received beam.

FIG. 14 is a signaling flowchart showing that a user equipment obtains amapping relation between resource identification information of a SSBand a received beam and a mapping relation between a TCI state andresource identification information of the SSB according to anembodiment of the present disclosure. In FIG. 14, a beam fortransmitting the SSB is represented by the resource identification ofthe SSB. As shown in FIG. 14, in step S1401, a UE establishes a mappingrelation between the resource identification of the SSB and a receivedbeam during the process of access. Next, in step S1402, after theprocess of access is completed, a base station establishes a mappingrelation between the TCI state and the resource identification of theSSB. Next, in step S1403, the base station transmits the mappingrelation between the TCI state and the resource identification of theSSB to the UE. Thus, the UE obtains and stores the mapping relationbetween the TCI state and the resource identification of the SSB and themapping relation between the resource identification of the SSB and thereceived beam.

As described above, the electronic equipment 600 according to anembodiment of the present disclosure may receive, from the network sidedevice, a TCI state which is related to a transmitted beam selected bythe network side device, and therefore, the electronic equipment 600 maydetermine an appropriate received beam based on the TCI state, such thatthe determined received beam matches the transmitted beam of the networkside device, thereby implementing beamforming, and thus improving asystem gain.

The electronic equipment 200 according to embodiments of the presentdisclosure may serve as a network side device and the electronicequipment 600 may serve as a user equipment. That is, the electronicequipment 200 may provide services for the electronic equipment 600.Therefore, all of the embodiments with respect to the electronicequipment 200 described above are applicable thereto.

4. Method Embodiments

Below a wireless communication performed by the electronic equipment 200which serves as a network side device in a wireless communication systemaccording to embodiments of the present disclosure will be described indetail.

FIG. 15 is a flowchart showing a wireless communication method performedby the electronic equipment 200 which serves as a network side device ina wireless communication system according to an embodiment of thepresent disclosure.

As shown in FIG. 15, in step S1510, information about N candidatetransmitted beams is received from a user equipment, where N is aninteger greater than 1.

Next, in step S1520, a transmitted beam for transmitting downlinkinformation to the user equipment is selected from the N candidatetransmitted beams.

Next, in step S1530, a Transmission Configuration Indication TCI stateis determined based on the selected transmitted beam, and the TCI stateis transmitted to the user equipment.

In an embodiment, the method further includes: determiningidentification information of the N candidate transmitted beams based onthe information about the N candidate transmitted beams.

In an embodiment, the method further includes: determining orderinformation of the N candidate transmitted beams based on theinformation about the N candidate transmitted beams; and selecting atransmitted beam for transmitting downlink information to the userequipment based on the order information of the N candidate transmittedbeams.

In an embodiment, the method further includes: determining channelquality information between all or a part of candidate transmitted beamsin the N candidate transmitted beams and the user equipment based on theinformation about the N candidate transmitted beams; and selecting atransmitted beam for transmitting downlink information to the userequipment based on the channel quality information between the all or apart of candidate transmitted beams and the user equipment.

In an embodiment, determining a Transmission Configuration IndicationTCI state based on the selected transmitted beam includes: determining abeam for transmitting a Synchronization Signal Block SSB correspondingto the selected transmitted beam; and determining a TCI state to betransmitted to the user equipment based on a mapping relation betweenthe TCI state and the beam for transmitting the SSB.

In an embodiment, determining a beam for transmitting a SynchronizationSignal Block SSB corresponding to the selected transmitted beamincludes: causing that a radiation range of the selected transmittedbeam is within a radiation range of the beam for transmitting the SSBcorresponding to the selected transmitted beam.

In an embodiment, the method further includes: after an initial accessis completed, establishing a mapping relation between the TCI state andthe beam for transmitting the SSB; and transmitting, to the userequipment, the mapping relation between the TCI state and the beam fortransmitting the SSB.

In an embodiment, the method further includes: periodically receiving,from the user equipment, the information about the N candidatetransmitted beams, or sending a request to the user equipment to obtainthe information about the N candidate transmitted beams.

In an embodiment, the electronic equipment 200 includes a network sidedevice in a New Radio NR communication system.

According to an embodiment of the present disclosure, the main bodyperforming the above method may be the electronic equipment 200according to an embodiment of the present disclosure, and thus all ofthe embodiments described above with respect to the electronic equipment200 are applicable thereto.

Below a wireless communication performed by the electronic equipment 600which serves as a user equipment in a wireless communication systemaccording to embodiments of the present disclosure will be described indetail.

FIG. 16 is a flowchart showing a wireless communication method performedby the electronic equipment 600 which serves as a user equipment in awireless communication system according to an embodiment of the presentdisclosure.

As shown in FIG. 16, in step S1610, a Transmission ConfigurationIndication TCI state is received from a network side device.

Next, in step S1620, a received beam for receiving downlink informationfrom the network side device is determined based on the TCI state.

In an embodiment, the method further includes: transmitting, to thenetwork side device, information about N candidate transmitted beams forselecting, by the network side device, a transmitted beam fortransmitting downlink information to the electronic equipment 600 fromthe N candidate transmitted beams, and determine the TCI state based onthe selected transmitted beam, where N is an integer greater than 1.

In an embodiment, the method further includes: determining the Ncandidate transmitted beams based on channel quality between Ktransmitted beams of the network side device and the electronicequipment 600, where K is an integer greater than or equal to N.

In an embodiment, the method further includes: determining the channelquality based on one or more of parameters including Reference SignalReceiving Power RSRP, Reference Signal Receiving Quality RSRQ, and BlockError Rate BLER.

In an embodiment, the method further includes: periodically transmittingthe information about the N candidate transmitted beams to the networkside device; or transmitting the information about the N candidatetransmitted beams in response to a request of the network side device.

In an embodiment, the information about the N candidate transmittedbeams includes identification information of the N candidate transmittedbeams.

In an embodiment, the method further includes: expressing theidentification of each of the N candidate transmitted beams by usingbinary coding.

In an embodiment, the method further includes: expressing theidentification of the N candidate transmitted beams by using a bit map.

In an embodiment, the method further includes: expressing theidentification of a reference candidate transmitted beam in the Ncandidate transmitted beams by using the binary coding, and expressingthe identification of other candidate transmitted beams in addition tothe reference candidate transmitted beam in the N candidate transmittedbeams by using binary coding of a difference value betweenidentifications of other candidate transmitted beams and the referencecandidate transmitted beam.

In an embodiment, the method further includes: based on a first mappingtable and an unordered combination of the N candidate transmitted beams,determining combination identification corresponding to the combination,and expressing the identification of the N candidate transmitted beamsby using the combination identification, where the first mapping tablestores a mapping relation between the combination of the N candidatetransmitted beams selected from the K transmitted beams of the networkside device and the combination identification, where K is an integergreater than or equal to N.

In an embodiment, the method further includes: the information about theN candidate transmitted beams including order information of the Ncandidate transmitted beams.

In an embodiment, the method further includes: based on a second mappingtable and an ordered arrangement of the N candidate transmitted beams,determining arrangement identification corresponding to the arrangement;and expressing identification and order of the N candidate transmittedbeams by using the arrangement identification, where the second mappingtable stores a mapping relation between the arrangement of the Ncandidate transmitted beams selected from the K transmitted beams of thenetwork side device and the arrangement identification, where K is aninteger greater than or equal to N.

In an embodiment, the information about the N candidate transmittedbeams includes channel quality information between all or a part ofcandidate transmitted beams in the N candidate transmitted beams and theelectronic equipment 600.

In an embodiment, determining a received beam for receiving downlinkinformation from the network side device based on the TCI stateincludes: determining, based on a mapping relation between the TCI stateand a beam for transmitting a Synchronization Signal Block SSB, a beamfor transmitting the SSB; and determining a received beam for receivingdownlink information from the network side device based on a mappingrelation between the beam for transmitting the SSB and the receivedbeam.

In an embodiment, the method further includes: after an initial accessis completed, receiving from the network side device the mappingrelation between the TCI state and the beam for transmitting the SSB.

In an embodiment, the method further includes: establishing, in theprocess of initial access, the mapping relation between the beam fortransmitting the SSB and the received beam.

In an embodiment, the method further includes: receiving, from thenetwork side device, configuration information about the number of the Ncandidate transmitted beams.

In an embodiment, the electronic equipment 600 includes user equipmentin a New Radio NR communication system.

According to an embodiment of the present disclosure, a main bodyperforming the above method may be the electronic equipment 600according to an embodiment of the present disclosure, and thus all ofthe embodiments described above with respect to the electronic equipment600 are applicable thereto.

5. Application Example

The technology according to the present disclosure may be applied invarious productions.

The network side device may be implemented as any type of TRPs. The TRPmay provide both transmitting function and receiving function, forexample, receiving information from a user equipment and a base stationdevice and transmitting information to the user equipment and the basestation device. In a typical example, the TRP may provide services tothe user equipment and is controlled by the base station device.Further, the TRP may have a structure similar to that of the basestations described below, and only may have a structure related totransmitting and receiving information in the base station device.

The network side device may also be implemented as any type of basestations such as a macro eNB and a small eNB, and further be implementedas any type of gNB. The small eNB may be an eNB such as a pico eNB, amicro eNB, and a home (femto) eNB that covers a cell smaller than amacro cell. Alternatively, the base station may be implemented as anyother types of base stations, such as a NodeB and a base transceiverstation (BTS). The base station may include a main body (also referredto as base station device) configured to control wireless communication,and one or more remote radio heads (RRH) located at positions differentfrom the main body.

The user equipment may be realized as a mobile terminal (such as a smartphone, a tablet personal computer (PC), a notebook PC, a portable gameterminal, a portable/dongle type mobile router, and a digital cameradevice), or an in-vehicle terminal (such as a vehicle navigationdevice). The user equipment may also be implemented as a terminal (thatis also referred to as a machine type communication (MTC) terminal) thatperforms machine-to-machine (M2M) communication. Furthermore, the userequipment may be a wireless communication module (such as an integratedcircuit module including a single chip) mounted on each of the aboveuser equipments.

APPLICATION EXAMPLES OF A BASE STATION First Application Example

FIG. 17 is a block diagram illustrating a first example of a schematicconfiguration of an eNB to which the technology of the presentdisclosure may be applied. An eNB 1700 includes one or more antennas1710 and a base station device 1720. The base station device 1720 andeach of the antennas 1710 may be connected to each other via an RF cable

Each of the antennas 1710 includes a single antenna element or multipleantenna elements (such as multiple antenna elements included in themultiple-input multiple-output (MIMO) antenna), and is used fortransmitting and receiving a radio signal by the base station device1720. The eNB 1700 may include multiple antennas 1710, as shown in FIG.17. For example, the multiple antennas 1710 may be compatible withmultiple frequency bands used by the eNB 1700. Although FIG. 17 shows anexample in which the eNB 1700 includes the multiple antennas 1710, theeNB 1700 may also include a single antenna 1710.

The base station device 1720 includes a controller 1721, a memory 1722,a network interface 1723, and a wireless communication interface 1725.

The controller 1721 may be, for example, a CPU or a DSP, and operatesvarious functions of a higher layer of the base station device 1720. Forexample, the controller 1721 generates a data packet based on data insignals processed by the wireless communication interface 1725, andtransfers the generated packet via the network interface 1723. Thecontroller 1721 may bundle data from multiple base band processors togenerate the bundled packet, and transfer the generated bundled packet.The controller 1721 may include logical functions of performing controlsuch as radio resource control, radio bearer control, mobilitymanagement, admission control, and scheduling. The control may beperformed in corporation with an eNB or a core network node in thevicinity. The memory 1722 includes an RAM and an ROM, and stores aprogram that is executed by the controller 1721, and various types ofcontrol data (such as a terminal list, transmission power data, andscheduling data).

The network interface 1723 is a communication interface for connectingthe base station device 1720 to a core network 1724. The controller 1721may communicate with a core network node or another eNB via the networkinterface 1723. In that case, the eNB 1700, and the core network node orthe other eNB may be connected to each other through a logical interface(such as an S1 interface and an X2 interface). The network interface1723 may also be a wired communication interface or a wirelesscommunication interface for radio backhaul. If the network interface1723 is a wireless communication interface, the network interface 1723may use a higher frequency band for wireless communication than afrequency band used by the wireless communication interface 1725.

The wireless communication interface 1725 supports any cellularcommunication schemes (such as long term evolution (LTE) andLTE-advanced), and provides a wireless connection to a terminal locatedin a cell of the eNB 1700 via the antenna 1710. The wirelesscommunication interface 1725 may generally include, for example, abaseband (BB) processor 1726 and an RF circuit 1727. The BB processor1726 may perform, for example, coding/decoding, modulation/demodulationand multiplexing/de-multiplexing, and perform various types of signalprocesses of the layer (for example L1, medium access control (MAC),wireless link control (RLC) and packet data convergence protocol(PDCP)). Instead of the controller 1721, the BB processor 1726 mayinclude some or all of the above logical functions. The BB processor1726 may be a memory storing communication control programs, or a moduleincluding a processor and related circuit configured to perform theprogram. Updating the program may allow the functions of the BBprocessor 1726 to be changed. The module may be a card or a blade thatis inserted into a slot of the base station device 1720. Alternatively,the module may also be a chip that is mounted on the card or the blade.In addition, the RF circuit 1727 may include, for example, a frequencymixer, a filter, and an amplifier, and transmits and receives a radiosignal via the antenna 1710.

The wireless communication interface 1725 may include the multiple BBprocessors 1726, as shown in FIG. 17. For example, the multiple BBprocessors 1726 may be compatible with multiple frequency bands used bythe eNB 1700. The wireless communication interface 1725 may include themultiple RF circuits 1727, as shown in FIG. 17. For example, themultiple RF circuits 1727 may be compatible with multiple antennaelements. Although FIG. 17 shows an example in which the wirelesscommunication interface 1725 includes multiple BB processors 1726 andmultiple RF circuits 1727, the wireless communication interface 1725 mayinclude a single BB processor 1726 or a single RF circuit 1727.

Second Application Example

FIG. 18 is a block diagram showing a second example of a schematicconfiguration of an eNB to which the technology of the presentdisclosure may be applied. An eNB 1830 includes one or more antennas1840, a base station device 1850 and an RRH 1860. The RRH 1860 and eachof the antennas 1840 may be connected to each other via an RF cable. Thebase station device 1850 and the RRH 1860 may be connected to each othervia a high speed line such as an optical fiber cable.

Each of the antennas 1840 includes a single antenna element or multipleantenna elements (such as multiple antenna elements included in an MIMOantenna), and is used for transmitting and receiving a radio signal bythe RRH 1860. As shown in FIG. 18, the eNB 1830 may include multipleantennas 1840. For example, the multiple antennas 1840 may be compatiblewith multiple frequency bands used by the eNB 1830. Although FIG. 18shows an example in which the eNB 1830 includes the multiple antennas1840, the eNB 1830 may also include a single antenna 1840.

The base station device 1850 includes a controller 1851, a memory 1852,a network interface 1853, a wireless communication interface 1855, and aconnection interface 1857. The controller 1851, the memory 1852, and thenetwork interface 1853 are the same as the controller 1721, the memory1722, and the network interface 1723 described with reference to FIG.17.

The wireless communication interface 1855 supports any cellularcommunication schemes (such as the LTE and the LTE-advanced), andprovides a wireless connection to a terminal located in the a sectorcorresponding to the RRH 1860 via the RRH 1860 and the antenna 1840. Thewireless communication interface 1855 may generally include, forexample, a baseband (BB) processor 1856. Except for the BB processor1856 being connected to a RF circuit 1864 of the RRH 1860 via theconnection interface 1857, the BB processor 1856 is the same as the BBprocessor 1726 described with reference to FIG. 17. The wirelesscommunication interface 1855 may include multiple BB processors 1856, asshown in FIG. 18. For example, the multiple BB processors 1856 may becompatible with multiple frequency bands used by the eNB 1830. AlthoughFIG. 18 shows an example in which the wireless communication interface1855 includes multiple BB processors 1856, the wireless communicationinterface 1855 may also include a single BB processor 1856.

The connection interface 1857 is an interface for connecting the basestation device 1850 (wireless communication interface 1855) to the RRH1860. The connection interface 1857 may also be a communication modulefor communication in the above high-speed line that connects the basestation device 1850 (the wireless communication interface 1855) to theRRH 1860.

The RRH 1860 includes a connection interface 1861 and a wirelesscommunication interface 1863.

The connection interface 1861 is an interface for connecting the RRH1860 (wireless communication interface 1863) to the base station device1850. The connection interface 1861 may also be a communication modulefor communication in the above-described high-speed line.

The wireless communication interface 1863 transmits and receives a radiosignal via the antenna 1840. The wireless communication interface 1863may generally include, for example, the RF circuit 1864. The RF circuit1864 may include, for example, a frequency mixer, a filter, and anamplifier, and transmits and receives a radio signal via the antenna1840. The wireless communication interface 1863 may include multiple RFcircuits 1864, as shown in FIG. 18. For example, the multiple RFcircuits 1864 may support multiple antenna elements. Although FIG. 18shows an example in which the wireless communication interface 1863includes the multiple RF circuits 1864, the wireless communicationinterface 1863 may also include a single RF circuit 1864.

In the eNB 1700 and the eNB 1830 shown in FIG. 17 and FIG. 18, theselecting unit 220, the determining unit 230, the decoding unit 240, theestablishing unit 250 and the storing unit 260 described with referenceto FIG. 2 may be implemented by the controller 1721 and/or thecontroller 1851, and the communication unit 210 described with referenceto FIG. 2 may be implemented by the wireless communication interface1725 and the wireless communication interface 1855 and/or the wirelesscommunication interface 1863. At least a part of the functions may beimplemented by a controller 1721 and a controller 1851. For example, thecontroller 1721 and/or the controller 1851 may perform a function ofselecting a transmitted beam and determining a TCI state by executinginstructions stored in the corresponding memory.

APPLICATION EXAMPLE OF A TERMINAL DEVICE First Application Example

FIG. 19 is a block diagram illustrating an example of a schematicconfiguration of a smart phone 1900 to which the technology of thepresent disclosure may be applied. The smart phone 1900 includes aprocessor 1901, a memory 1902, a storage device 1903, an externalconnection interface 1904, a camera device 1906, a sensor 1907, amicrophone 1908, an input device 1909, a display device 1910, a speaker1911, a wireless communication interface 1912, one or more antennaswitches 1915, one or more antennas 1916, a bus 1917, a battery 1918 andan auxiliary controller 1919.

The processor 1901 may be, for example, a CPU or a system on chip (SoC),and controls functions of application layer and other layers of thesmart phone 1900. The memory 1902 includes an RAM and an ROM, and storesprograms executed by the processor 1901, and data. The storage device1903 may include a storage medium, such as a semiconductor memory and ahard disk. The external connection interface 1904 is an interface forconnecting an external device (such as a memory card or a universalserial bus (USB) device) to the smart phone 1900.

The camera device 1906 includes an image sensor (such as a chargecoupled device (CCD) and a complementary metal oxide semiconductor(CMOS)) and generates a captured image. The sensor 1907 may include aset of sensors, such as a measurement sensor, a gyroscope sensor, ageomagnetic sensor and an acceleration sensor. The microphone 1908converts sound inputted into the smart phone 1900 into an audio signal.The input device 1909 includes, for example, a touch sensor configuredto detect touch on a screen of the display device 1910, a keypad, akeyboard, a button or a switch, and receives an operation or informationinputted by a user equipment. The display device 1910 includes a screen(such as a liquid crystal display (LCD) and an organic light emittingdiode (OLED)), and displays an output image from the smart phone 1900.The speaker 1911 converts an audio signal that is output from the smartphone 1900 to sound.

The wireless communication interface 1912 supports any cellularcommunication schemes (such as LET and LTE-Advanced), and performswireless communication. The wireless communication interface 1212 maygenerally include, for example, a BB processor 1913 and an RF circuit1914. The BB processor 1913 may perform, for example, encoding/decoding,modulating/demodulating, and multiplexing/demultiplexing, and performsvarious types of signal processing for wireless communication. Inaddition, the RF circuit 1914 may include, for example, a frequencymixer, a filter and an amplifier, and transmits and receives a radiosignal via the antenna 1916. The wireless communication interface 1912may be one chip module on which the BB processor 1913 and the RF circuit1914 are integrated. The wireless communication interface 1912 mayinclude multiple BB processors 1913 and multiple RF circuits 1914, asshown in FIG. 19. Although FIG. 19 shows an example in which thewireless communication interface 1912 includes the multiple BBprocessors 1913 and the multiple RF circuits 1914, the wirelesscommunication interface 1912 may also include a single BB processor 1913or a single RF circuit 1914.

Furthermore, in addition to a cellular communication scheme, thewireless communication interface 1912 may support another type ofwireless communication scheme such as a short-distance wirelesscommunication scheme, a near field communication scheme, and a wirelesslocal area network (LAN) scheme. In this case, the wirelesscommunication interface 1912 may include the BB processor 1913 and theRF circuit 1914 for each wireless communication scheme.

Each of the antenna switches 1915 switches connection destinations ofthe antennas 1916 among multiple circuits (such as circuits fordifferent wireless communication schemes) included in the wirelesscommunication interface 1912.

Each of the antennas 1916 includes a single antenna element or multipleantenna elements (such as multiple antenna elements included in an MIMOantenna), and is used for transmitting and receiving a radio signal bythe wireless communication interface 1912. The smart phone 1900 mayinclude multiple antennas 1916, as shown in FIG. 19. Although FIG. 19shows an example in which the smart phone 1900 includes multipleantennas 1916, the smart phone 1900 may also include a single antenna1916.

Furthermore, the smart phone 1900 may include the antenna 1916 for eachwireless communication scheme. In this case, the antenna switch 1915 maybe omitted from of the configuration of the smart phone 1900.

The bus 1917 connects the processor 1901, the memory 1902, the storagedevice 1903, the external connection interface 1904, the camera device1906, the sensor 1907, the microphone 1908, the input device 1909, thedisplay device 1910, the speaker 1911, the wireless communicationinterface 1912, and the auxiliary controller 1919 to each other. Thebattery 1918 supplies power to each block of the smart phone 1900 shownin FIG. 19 via feeder lines, which are partially shown as dashed linesin the figure. The auxiliary controller 1919 operates a minimumnecessary function of the smart phone 1900, for example, in a sleepmode.

In the smart phone 1900 shown in FIG. 19, the determining unit 620, theselecting unit 630, the encoding unit 640, the storing unit 650 and theestablishing unit 660 described with reference to FIG. 6 may beimplemented by the processor 1901 or the auxiliary controller 1919, andthe communication unit 610 described with reference to FIG. 6 may beimplemented by the wireless communication interface 1912. At least apart of functions may also be implemented by the processor 1901 or theauxiliary controller 1919. For example, the processor 1901 or theauxiliary controller 1919 may perform a function of determining areceived beam by executing instructions stored in the memory 1902 or thestorage device 1903.

Second Application Example

FIG. 20 is a block diagram showing an example of a schematicconfiguration of a vehicle navigation device 2020 to which thetechnology of the present disclosure may be applied. The vehiclenavigation device 2020 includes a processor 2021, a memory 2022, aglobal positioning system (GPS) module 2024, a sensor 2025, a datainterface 2026, a content player 2027, a storage medium interface 2028,an input device 2029, a display device 2030, a speaker 2031, a wirelesscommunication interface 2033, one or more antenna switches 2036, one ormore antennas 2037 and a battery 2038.

The processor 2021 may be, for example, a CPU or a SoC, and controls thenavigation function and additional functions of the vehicle navigationdevice 2020. The memory 2022 includes an RAM and an ROM, and storesprograms executed by the processor 2021, and data.

The GPS module 2024 measures a location of the vehicle navigation device2020 (such as a latitude, a longitude and a height) using a GPS signalreceived from a GPS satellite. The sensor 2025 may include a group ofsensors such as a gyroscope sensor, a geomagnetic sensor and an airpressure sensor. The data interface 2026 is connected to, for example,an in-vehicle network 2041 via a terminal that is not shown, andacquires data (such as vehicle speed data) generated by the vehicle.

The content player 2027 reproduces contents stored in a storage medium(such as a CD and a DVD) which is inserted into the storage mediuminterface 2028. The input device 2029 includes, for example, a touchsensor configured to detect touch on a screen of the display device2030, a button, or a switch, and receives an operation or informationinputted by a user equipment. The display device 2030 includes a screensuch as a LCD or an OLED display, and displays an image of thenavigation function or content that is reproduced. The speaker 2031outputs a sound of a navigation function or the reproduced content.

The wireless communication interface 2033 supports any cellularcommunication schemes (such as LTE and LTE-advanced) and performswireless communication. The wireless communication interface 2033 maygenerally include, for example, a BB processor 2034 and an RF circuit2035. The BB processor 2034 may perform, for example, coding/decoding,modulation/demodulation and multiplexing/de-multiplexing, and performvarious types of signal processing for wireless communications. Inaddition, the RF circuit 2035 may include, for example, a frequencymixer, a filter and an amplifier, and transmits and receives a radiosignal via the antenna 2037. The wireless communication interface 2033may be one chip module on which the BB processor 2034 and the RF circuit2035 are integrated. As shown in FIG. 20, the wireless communicationinterface 2033 may include multiple BB processors 2034 and multiple RFcircuits 2035. Although FIG. 20 shows an example in which the wirelesscommunication interface 2033 includes the multiple BB processors 2034and the multiple RF circuits 2035, the wireless communication interface2033 may also include a single BB processor 2034 or a single RF circuit2035.

Furthermore, in addition to a cellular communication scheme, thewireless communication interface 2033 may support another type ofwireless communication scheme, such as a short-distance wirelesscommunication scheme, a near field communication scheme and a wirelessLAN scheme. In this case, the wireless communication interface 2033 mayinclude a BB processor 2034 and an RF circuit 2035 for each wirelesscommunication scheme.

Each of the antenna switches 2036 switches connection destinations ofthe antennas 2037 among multiple circuits (such as circuits fordifferent wireless communication schemes) included in the wirelesscommunication interface 2033.

Each of the antennas 2037 includes a single antenna element or multipleantenna elements (such as multiple antenna elements included in a MIMOantenna) and is used for transmitting and receiving a radio signal bythe wireless communication interface 2033. As shown in FIG. 20, thevehicle navigation device 2020 may include multiple antennas 2037.Although FIG. 20 shows an example in which the vehicle navigation device2020 includes multiple antennas 2037, the vehicle navigation device 2020may also include a single antenna 2037.

Furthermore, the vehicle navigation device 2020 may include the antenna2037 for each wireless communication scheme. In this case, the antennaswitch 2036 may be omitted from the configuration of the vehiclenavigation device 2020.

The battery 2038 supplies power to each block of the vehicle navigationdevice 2020 shown in FIG. 20 via feeder lines, which are partially shownas dashed lines in the figure. The battery 2038 accumulates the powersupplied from the vehicle.

In the vehicle navigation device 2020 shown in FIG. 20, the determiningunit 620 the selecting unit 630, the encoding unit 640, the storing unit650 and the establishing unit 660 described with reference to FIG. 6 maybe implemented by the processor 2021, and the communication unit 610described with reference to FIG. 6 may be implemented by the wirelesscommunication interface 2033. At least a part of functions may also beimplemented by the processor 2021. For example, the processor 2021 mayperform a function of determining a received beam by executinginstructions stored in the memory 2022.

The technology of the present disclosure may also be implemented as anin-vehicle system (or a vehicle) 2040 including the vehicle navigationdevice 2020, an in-vehicle network 2041 and one or more blocks of avehicle module 2042. The vehicle module 2042 generates vehicle data(such as vehicle speed, motor speed and fault information), and outputsthe generated data to the in-vehicle network 2041.

The preferred embodiments of the present disclosure have been describedabove with reference to the drawings, but the present disclosure is notlimited to the above examples. Those skilled in the art can make variouschanges and modifications within the scope of the appended claims, andit should be understood that such changes and modifications naturallyfall within the technical scope of the present disclosure.

For example, units shown by dashed boxes in functional block diagramsshown in the drawings indicate that the functional units are optional inthe respective devices, and the various optional functional units may becombined in an appropriate manner to implement the required features.

For example, multiple functions included in a unit in the aboveembodiments may be implemented by separate devices. Alternatively,multiple functions implemented by multiple units in the aboveembodiments may be implemented by separate devices, respectively. Inaddition, one of the above functions may be implemented by multipleunits. Needless to say, such configuration is included in the technicalscope of the present disclosure.

In the specification, steps described in the flowchart include not onlythe processing performed chronologically, but also the processingperformed in parallel or individually rather than chronologically.Furthermore, even in the step of processing in time series, the ordercan be appropriately changed.

In addition, according to the present disclosure, the followingconfiguration can be performed.

-   -   (1) An electronic equipment including a processing circuit        configured to:        -   receive, from a user equipment, information about N            candidate transmitted beams, where N is an integer greater            than 1;        -   select, from the N candidate transmitted beams, a            transmitted beam for transmitting downlink information to            the user equipment; and        -   determine a Transmission Configuration Indication TCI state            according to the selected transmitted beam, and transmit the            TCI state to the user equipment.    -   (2) The electronic equipment according to item (1), where the        processing circuit is further configured to:        -   determine identification information of the N candidate            transmitted beams according to the information about the N            candidate transmitted beams.    -   (3) The electronic equipment according to item (2), where the        processing circuit is further configured to:        -   determine order information of the N candidate transmitted            beams according to the information about the N candidate            transmitted beams; and        -   select a transmitted beam for transmitting downlink            information to the user equipment according to the order            information of the N candidate transmitted beams.    -   (4) The electronic equipment according to item (2), where the        processing circuit is further configured to:        -   determine channel quality information between all or a part            of candidate transmitted beams in the N candidate            transmitted beams and the user equipment according to the            information about the N candidate transmitted beams; and        -   select a transmitted beam for transmitting downlink            information to the user equipment according to the channel            quality information between the all or a part of candidate            transmitted beams and the user equipment.    -   (5) The electronic equipment according to item (1), where the        processing circuit is further configured to:        -   determine a beam for transmitting a Synchronization Signal            Block SSB corresponding to the selected transmitted beam;            and        -   determine a TCI state to be transmitted to the user            equipment according to a mapping relation between the TCI            state and the beam for transmitting the SSB.    -   (6) The electronic equipment according to item (5), where a        radiation range of the selected transmitted beam is within a        radiation range of the beam for transmitting the SSB        corresponding to the selected transmitted beam.    -   (7) The electronic equipment according to item (5), where the        processing circuit is further configured to:        -   after an initial access is completed, establish a mapping            relation between the TCI state and the beam for transmitting            the SSB; and        -   transmit, to the user equipment, the mapping relation            between the TCI state and the beam for transmitting the SSB.    -   (8) The electronic equipment according to item (1), where the        processing circuit is further configured to:        -   periodically receive, from the user equipment, the            information about the N candidate transmitted beams, or        -   send a request to the user equipment to obtain the            information about the N candidate transmitted beams.    -   (9) The electronic equipment according to any one of items (1)        to (8), where the electronic equipment includes a network side        device in a New Radio NR communication system.    -   (10) An electronic equipment including a processing circuit        configured to:        -   receive, from a network side device, a Transmission            Configuration Indication TCI state; and        -   determine a received beam for receiving downlink information            from the network side device according to the TCI state.    -   (11) The electronic equipment according to item (10), where the        processing circuit is further configured to:        -   transmit, to the network side device, information about N            candidate transmitted beams for selecting, by the network            side device, a transmitted beam for transmitting downlink            information to the electronic equipment from the N candidate            transmitted beams, and determine the TCI state according to            the selected transmitted beam, where N is an integer greater            than 1.    -   (12) The electronic equipment according to item (10), where the        processing circuit is further configured to:        -   determine the N candidate transmitted beams according to            channel quality between K transmitted beams of the network            side device and the electronic equipment, where K is an            integer greater than or equal to N.    -   (13) The electronic equipment according to item (12), where the        processing circuit is further configured to:        -   determine the channel quality according to one or more of            parameters including Reference Signal Receiving Power RSRP,            Reference Signal Receiving Quality RSRQ, and Block Error            Rate BLER.    -   (14) The electronic equipment according to item (11), where the        processing circuit is further configured to:        -   periodically transmit the information about the N candidate            transmitted beams to the network side device; or        -   transmit the information about the N candidate transmitted            beams in response to a request of the network side device.    -   (15) The electronic equipment according to item (11), where the        information about the N candidate transmitted beams includes        identification information of the N candidate transmitted beams.    -   (16) The electronic equipment according to item (15), where the        processing circuit is further configured to express        identification of the N candidate transmitted beams in any means        of:        -   expressing the identification of each of the N candidate            transmitted beams by using binary coding;        -   expressing the identification of the N candidate transmitted            beams by using a bit map;        -   expressing the identification of a reference candidate            transmitted beam in the N candidate transmitted beams by            using the binary coding, and expressing the identification            of other candidate transmitted beams in addition to the            reference candidate transmitted beam in the N candidate            transmitted beams by using binary coding of a difference            value between identifications of other candidate transmitted            beams and the reference candidate transmitted beam; and        -   according to a first mapping table and an unordered            combination of the N candidate transmitted beams,            determining combination identification corresponding to the            combination, and expressing the identification of the N            candidate transmitted beams by using the combination            identification, wherein the first mapping table stores a            mapping relation between the combination of the N candidate            transmitted beams selected from the K transmitted beams of            the network side device and the combination identification,            wherein K is an integer greater than or equal to N.    -   (17) The electronic equipment according to item (15), where the        information about the N candidate transmitted beams includes        order information of the N candidate transmitted beams.    -   (18) The electronic equipment according to item (17), where the        processing circuit is further configured to:        -   according to a second mapping table and an ordered            arrangement of the N candidate transmitted beams, determine            arrangement identification corresponding to the arrangement;            and        -   express identification and order of the N candidate            transmitted beams by using the arrangement identification,        -   where the second mapping table stores a mapping relation            between the arrangement of the N candidate transmitted beams            selected from the K transmitted beams of the network side            device and the arrangement identification, where K is an            integer greater than or equal to N.    -   (19) The electronic equipment according to item (15), where the        information about the N candidate transmitted beams includes        channel quality information between all or a part of candidate        transmitted beams in the N candidate transmitted beams and the        electronic equipment.    -   (20) The electronic equipment according to item (10), where the        processing circuit is further configured to:        -   determine, according to a mapping relation between the TCI            state and a beam for transmitting a Synchronization Signal            Block SSB, a beam for transmitting the SSB; and        -   determine a received beam for receiving downlink information            from the network side device according to a mapping relation            between the beam for transmitting the SSB and the received            beam.    -   (21) The electronic equipment according to item (20), where the        processing circuit is further configured to:        -   after an initial access is completed, receive from the            network side device the mapping relation between the TCI            state and the beam for transmitting the SSB.    -   (22) The electronic equipment according to item (20), where the        processing circuit is further configured to:        -   establish, in the process of initial access, the mapping            relation between the beam for transmitting the SSB and the            received beam.    -   (23) The electronic equipment according to item (11), where the        processing circuit is further configured to:        -   receive, from the network side device, configuration            information about a number of the N candidate transmitted            beams.    -   (24) The electronic equipment according to any one of items (10)        to (23), where the electronic equipment includes user equipment        in a New Radio NR communication system.    -   (25) A wireless communication method, including:        -   receiving, from a user equipment, information about N            candidate transmitted beams, where N is an integer greater            than 1;        -   selecting, from the N candidate transmitted beams, a            transmitted beam for transmitting downlink information to            the user equipment; and        -   determining a Transmission Configuration Indication TCI            state according to the selected transmitted beam, and            transmitting the TCI state to the user equipment.    -   (26) A wireless communication method, including:        -   receiving, from a network side device, a Transmission            Configuration Indication TCI state; and        -   determining a received beam for receiving downlink            information from the network side device according to the            TCI state.    -   (27) A computer-readable storage medium including        computer-executable instructions which, when executed by a        computer, cause the computer to perform the wireless        communication method according to items (25) or (26).

Although the embodiments of the present disclosure have been describedabove in detail in conjunction with the drawings, it should beunderstood that the embodiments described above are merely illustrativebut not limitative of the present disclosure. Those skilled in the artcan make various modifications and changes to the above embodimentswithout departing from the spirit and scope of the present disclosure.Therefore, the scope of the present disclosure is defined only by theappended claims and their equivalents.

1. An electronic equipment comprising a processing circuit configuredto: receive, from a user equipment, information about N candidatetransmitted beams, wherein N is an integer greater than 1; select, fromthe N candidate transmitted beams, a transmitted beam for transmittingdownlink information to the user equipment; and determine a TransmissionConfiguration Indication TCI state according to the selected transmittedbeam, and transmit the TCI state to the user equipment.
 2. Theelectronic equipment according to claim 1, wherein the processingcircuit is further configured to: determine identification informationof the N candidate transmitted beams according to the information aboutthe N candidate transmitted beams.
 3. The electronic equipment accordingto claim 2, wherein the processing circuit is further configured to:determine order information of the N candidate transmitted beamsaccording to the information about the N candidate transmitted beams;and select a transmitted beam for transmitting downlink information tothe user equipment according to the order information of the N candidatetransmitted beams.
 4. The electronic equipment according to claim 2,wherein the processing circuit is further configured to: determinechannel quality information between all or a part of candidatetransmitted beams in the N candidate transmitted beams and the userequipment according to the information about the N candidate transmittedbeams; and select a transmitted beam for transmitting downlinkinformation to the user equipment according to the channel qualityinformation between the all or a part of candidate transmitted beams andthe user equipment.
 5. The electronic equipment according to claim 1,wherein the processing circuit is further configured to: determine abeam for transmitting a Synchronization Signal Block SSB correspondingto the selected transmitted beam; and determine a TCI state to betransmitted to the user equipment according to a mapping relationbetween the TCI state and the beam for transmitting the SSB.
 6. Theelectronic equipment according to claim 5, wherein a radiation range ofthe selected transmitted beam is within a radiation range of the beamfor transmitting the SSB corresponding to the selected transmitted beam.7. The electronic equipment according to claim 5, wherein the processingcircuit is further configured to: after an initial access is completed,establish a mapping relation between the TCI state and the beam fortransmitting the SSB; and transmit, to the user equipment, the mappingrelation between the TCI state and the beam for transmitting the SSB. 8.The electronic equipment according to claim 1, wherein the processingcircuit is further configured to: periodically receive, from the userequipment, the information about the N candidate transmitted beams, orsend a request to the user equipment to obtain the information about theN candidate transmitted beams.
 9. (canceled)
 10. An electronic equipmentcomprising a processing circuit configured to: receive, from a networkside device, a Transmission Configuration Indication TCI state; anddetermine a received beam for receiving downlink information from thenetwork side device according to the TCI state.
 11. The electronicequipment according to claim 10, wherein the processing circuit isconfigured to: transmit, to the network side device, information about Ncandidate transmitted beams for selecting, by the network side device, atransmitted beam for transmitting downlink information to the electronicequipment from the N candidate transmitted beams, and determine the TCIstate according to the selected transmitted beam, wherein N is aninteger greater than
 1. 12. The electronic equipment according to claim11, wherein the processing circuit is further configured to: determinethe N candidate transmitted beams according to channel quality between Ktransmitted beams of the network side device and the electronicequipment, wherein K is an integer greater than or equal to N. 13.(canceled)
 14. The electronic equipment according to claim 11, whereinthe processing circuit is further configured to: periodically transmitthe information about the N candidate transmitted beams to the networkside device; or transmit the information about the N candidatetransmitted beams in response to a request of the network side device.15. The electronic equipment according to claim 11, wherein theinformation about the N candidate transmitted beams comprisesidentification information of the N candidate transmitted beams, andwherein the processing circuit is further configured to expressidentification of the N candidate transmitted beams in any means of:expressing the identification of each of the N candidate transmittedbeams by using binary coding; expressing the identification of the Ncandidate transmitted beams by using a bit map; expressing theidentification of a reference candidate transmitted beam in the Ncandidate transmitted beams by using the binary coding, and expressingthe identification of other candidate transmitted beams in addition tothe reference candidate transmitted beam in the N candidate transmittedbeams by using binary coding of a difference value betweenidentifications of other candidate transmitted beams and the referencecandidate transmitted beam; and according to a first mapping table andan unordered combination of the N candidate transmitted beams,determining combination identification corresponding to the combination,and expressing the identification of the N candidate transmitted beamsby using the combination identification, wherein the first mapping tablestores a mapping relation between the combination of the N candidatetransmitted beams selected from the K transmitted beams of the networkside device and the combination identification, wherein K is an integergreater than or equal to N.
 16. (canceled)
 17. The electronic equipmentaccording to claim 15, wherein the information about the N candidatetransmitted beams comprises order information of the N candidatetransmitted beams.
 18. The electronic equipment according to claim 17,wherein the processing circuit is further configured to: according to asecond mapping table and an ordered arrangement of the N candidatetransmitted beams, determine arrangement identification corresponding tothe arrangement; and express identification and order of the N candidatetransmitted beams by using the arrangement identification, wherein thesecond mapping table stores a mapping relation between the arrangementof the N candidate transmitted beams selected from the K transmittedbeams of the network side device and the arrangement identification,wherein K is an integer greater than or equal to N.
 19. The electronicequipment according to claim 15, wherein the information about the Ncandidate transmitted beams comprises channel quality informationbetween all or a part of candidate transmitted beams in the N candidatetransmitted beams and the electronic equipment.
 20. The electronicequipment according to claim 10, wherein the processing circuit isfurther configured to: determine, according to a mapping relationbetween the TCI state and a beam for transmitting a SynchronizationSignal Block SSB, a beam for transmitting the SSB; and determine areceived beam for receiving downlink information from the network sidedevice according to a mapping relation between the beam for transmittingthe SSB and the received beam.
 21. The electronic equipment according toclaim 20, wherein the processing circuit is further configured to: afteran initial access is completed, receive from the network side device themapping relation between the TCI state and the beam for transmitting theSSB.
 22. The electronic equipment according to claim 20, wherein theprocessing circuit is further configured to: establish, in the processof initial access, the mapping relation between the beam fortransmitting the SSB and the received beam. 23.-24. (canceled)
 25. Awireless communication method, comprising: receiving, from userequipment, information about N candidate transmitted beams, wherein N isan integer greater than 1; selecting, from the N candidate transmittedbeams, a transmitted beam for transmitting downlink information to theuser equipment; and determining a Transmission Configuration IndicationTCI state according to the selected transmitted beam, and transmittingthe TCI state to the user equipment. 26.-27. (canceled)